Opteon™ XL41
Refrigerant (R-454B)

Properties, Uses,
Storage, andHandling

Opteon™ XL41 (R-454B)

Table of Contents
Introduction ........................................................................... 3
Background.....................................................................................................3
Benefits .............................................................................................................3
Physical Properties ............................................................... 4
Pressure-Enthalpy diagram .................................................................5
Water Solubility............................................................................................6
Dielectric Properties ................................................................................6
Performance Comparison..................................................... 7
Chemical/Thermal Stability .................................................. 8
Stability with Metals .................................................................................8
Thermal Decomposition.........................................................................9Compatibility Concerns with Mixing Refrigerants................9
Materials Compatibility...........................................................................9
Lubricants............................................................................10
Miscibility...................................................................................................... 14
Daniel Plots................................................................................................. 17
Safety ..................................................................................19
Decomposition ......................................................................................... 19
Inhalation Toxicity .................................................................................. 19
Flammability ............................................................................................... 20
Equipment Designed for A2L Refrigerants .......................... 20
Mechanical Equipment Room Requirements ...................... 20
Servicing Equipment Containing A2L Refrigerants........ 20
Air Monitors and Leak Detection .......................................22
Types of Detectors................................................................................ 22
Shipping, Storage, and Handling .......................................23
Shipping Information(Cylinders, Half-Ton, Ton, and ISO Containers) ................... 23
Cylinders Storage and Handling ................................................... 23
Filling and Charging Operations.................................................... 23
Bulk Storage Systems ........................................................23
Bulk Storage Preparation.................................................................. 24
Material Compatibility Concerns .......................................25
Recovery, Reclamation, Recycle, and Disposal ................25
Recovery....................................................................................................... 25
Reclamation................................................................................................ 25
Recycle .......................................................................................................... 25
Disposal......................................................................................................... 25

Refrigerant

Opteon™ XL41 (R-454B)

Refrigerant

Introduction
Background
Opteon™ XL41 (R-454B) is a low global warming potential (GWP) hydrofluoro-olefin (HFO) based refrigerant to replace
R-410A in new equipment designs. Opteon™ XL41 is suitable for positive displacement, direct expansion air conditioning,heat pumps and chillers in the residential, light commercial, and commercial market segments.
Opteon™ XL41 is classified as having low toxicity and lower flammability (ISO/ASHRAE class A2L). Please check yourlocal regulations and standards to verify the allowable filling charge, new equipment design and safe handlingrequirements for the intended application.

Table 1. Opteon™ Compositions (wt%)
R-32

R-1234yf

R-125

Opteon™ XL41 (R-454B)

68.9

31.1

-

Freon™ 410A (R-410A)

50

-

50

Table 2. Refrigerant Information
Refrigerant

Chemical Name

Formula

CAS No.

Molecular Weight

HFC-32

Difluoromethane

CH2 F275-10-5

52.0 g/mol

HFC-125

Pentafluoroethane

CF3CHF2

354-33-6

120.0 g/mol

HFO-1234yf

2,3,3,3-Tetrafluoropropene

CF3CFCH 2

754-12-1

114.0 g/mol

Benefits•

78% reduction in GWP relative to R-410A•

Improved capacity and efficiency compared to R-410A•

Excellent performance in normal and high ambient conditions•

Physical properties very close match to R-410A – easily convertible from R-410A designs•

Very low temperature glide – can be topped off after leaks•

Enables higher charge sizes compared to other flammable refrigerants•

Miscible with polyolester (POE) lubricants3

Opteon™ XL41 (R-454B)

Refrigerant

Physical Properties
Table 3. Opteon™ XL41 General Property Information
Physical Property¹

Unit

Opteon™ XL41 (R-454B)

Freon™ 410A (R-410A)

Molecular Weight, avg.

g/mol

62.6

72.6

Boiling Point (1 atm)

°C
°F
°C
°F
kPa abspsia
kg/m³
lbm/ft³
kg/m³
lbm/ft³
kg/m³
lbm/ft³
kJ/kgK
BTU/lbm°R
kJ/kgK
BTU/lbm°R
kPa abs
psia
kJ/kg
BTU/lbm

-50.5
-58.9
78.10
172.6
5266.9763.91
443.0
27.66
984.6
61.47
50.7
3.17
1.80
0.43
0.865
0.207
1570.8227.83316.28136.07

-51.4
-60.6
71.34
160.4
4901.1710.84459.0828.6591058.666.088
65.97
4.119
1.71
0.408
0.823
0.197
1657.4240.39272.96117.43

W/mK
BTU/hrft°F
W/mK
BTU/hrft°F

0.105
0.06100.01510.00872

0.08920.05160.01570.00909

Pa-s
cP
Pa-s
cP

0.000115
0.115
0.0000127
0.01270.000118
0.01180.0000133
0.0133-

A2L

A1

LFL @ WCF

Vol %

11.5

-

LFL @ WCF

ppm v/v

115,000-

LFL @ WCF

lb/1000 ft³

18.5

-

LFL @ WCF

g/m³

296.8

-

Autoignition Temperature

ºC

496

-

Hot Surface Ignition Temperature

°C

> 800

-

²Burning Velocity (Su) @ WCF: 23ºC, Dry Air

cm/s

5.2

-

²Burning Velocity @ WCFF: 23ºC, Dry Air

cm/s

< 4.0

-

³Burning Velocity (Su) @ Nominal: 23ºC, 50% RH

cm/s

5.7

-

²Heat of Combustion @ WCF

MJ/kg

9.9

-

²Heat of Combustion @ WCFF

MJ/kg

9.9

-

CFC-11=1.000

CO₂=1.0467 (466)

1924 (2088)

ListedYes

Yes

Critical Temperature
Critical Pressure
Critical Density
Liquid Density at 25°C (77°F)
Density, Saturated Vapor at 25°C (77°F)
Specific Heat, Liquid at 25°C (77°F)
Specific Heat, Vapor at 25°C (77°F) (1 atm)
Vapor Pressure, Saturated Liquid at 25°C (77°F)
Heat of Vaporization at Boiling Point
Thermal Conductivity at 25°C (77°F)
LiquidVapor (1 atm)
Viscosity at 25°C (77°F)
LiquidVapor (1 atm)
ASHRAE Standard 34 Safety Classification
Flammability Properties

Ozone Depletion Potential (ODP)
AR5 (AR4) Global Warming Potential (GWP)
TSCA Inventory Status

WCF - Worst case of formulation for flammability, WCFF - Worst case of fractionation for flammability, ¹Based on NIST Standard
Database 23, Version 10.0 (Lemmon, E.W.; Huber, M.L.; McLinden, M.O.; REFPROP Reference Fluid Thermodynamic and Transport
Properties – National Institute of Standards and Technology, 2018)., ²Values per ISO817, ³Preliminary, pending final publication
4

Opteon™ XL41 (R-454B)

Refrigerant

Physical Properties

5

Opteon™ XL41 (R-454B)

Refrigerant

Physical Properties
Water Solubility
The maximum amount of moisture allowed in a system before issues present themselves is a function of the solubility
between the refrigerant and water. The solubility of water in refrigerant is temperature dependent. From the saturated
solubility plot below, R-454B exhibits slightly higher solubility over R-410A for the range of temperatures presented.
Figure 1. Opteon™ XL41 Solubility

Dielectric Properties
In hermetically sealed refrigeration and air conditioning systems, the refrigerant aids in cooling the electric motor thatdrives the compressor as the refrigerant is in direct contact with electric motor components. As a result, the electricalproperties of a refrigerant are important to understand. The dielectric constant of a refrigerant is a measure the abilityof the refrigerant to shield an electric charge in an electric field. Electrical properties of the refrigerant in a refrigeration system, however, can differ as they can be significantly impacted by the amount and type of lubricants, contaminants, moisture, and etcetera. The dielectric constant as a function of temperature for R-410A and R-454B can beseen below.
Figure 2. Dielectric constant versus Temperature for R-410A and R-454B

6

Opteon™ XL41 (R-454B)

Refrigerant

Performance Comparison
The performance comparisons detailed below for both air conditioning and heat pump applications are theoretical
thermodynamic model calculations at specific conditions. Actual results will be system dependent.

Table 3. Performance ComparisonsACHP

R-454B

R-410A

R-454B

R-410A

Relative Capacity

-

0.97

1.0

0.98

1.0

Relative COP

-

1.02

1.00

1.03

1.00

Evaporator Glide¹

∆°F

2.0

0.20

1.7

0.10

Relative Mass Flow

-

0.82

1.0

0.80

1.0

T Discharge

°F

180

169

232

216

P Discharge

psia

355

381

465

498

P Suction

psia

135

145

107

116

¹Evaporator glide is the temperature difference between evaporator inlet and the saturated vapor temperature at the evaporator
pressure (evaporator dew point).
AC Conditions: 7.2ºC[45ºF] average evaporator, 43.3ºC [110ºF] average condenser, 2.8K [5R] subcooling, 8.3K [15R] superheat, 70%
isentropic efficiency
HP Conditions: 0°C [32°F] average evaporator, 55°C [131°F] average condenser, 3K [5.4R] subcooling, 10K [18R] superheat, 70%
isentropic efficiency

7

Opteon™ XL41 (R-454B)

Refrigerant

Chemical/Thermal Stability
Stability with Metals
Thermal stability was evaluated using ASHRAE Standard 97 with lubricant. Tubes were loaded with carbon steel,copper, and aluminum coupons, then filled with refrigerant and lubricant. Additional tests to assess the impact ofrefrigerant with air contamination (2000 ppm) and oil with moisture contamination (500 ppm) were performed. Tubes
were sealed and aged at 175°C (347°F) for 14 days. Fluoride ion concentrations were measured as an indication of
fluid decomposition. Both POE and PVE oils were tested.
The results show thermal stability similar to R-410A.
Table 4. Thermal Stability
Air(mmHg)

Water
(ppm)

Metal
Coupons

F(ppm)

Total Acid
Number (TAN)(mg KOH/g)

R-410A/POE

None

None

Yes

6.46

0.49

R-410A/POE

7.6

None

Yes

11.7

0.17

R-410A/POE

None

500

Yes

2.02

0.66

R-410A/POE

7.6

500

Yes

3.07

0.5

R-454B/POE

None

None

Yes

3.46

0.22

R-454B/POE

7.6

None

Yes

6.06

0.17

R-454B/POE

None

500

Yes

8.06

2.28

R-454B/POE

7.6

500

Yes

7.41

1.82

R-410A/PVE

None

None

Yes

<MDL

0.3

R-410A/PVE

None

500

Yes

<MDL

<MDL

R-454B/PVE

None

None

Yes

<MDL

<MDL

R-454B/PVE

None

500

Yes

<MDL

<MDL

<MDL

0.23

Refrigerant

Baseline oil as-is

No visible changes were noted after 14 days at 175°C (347°F). Opteon™ XL41 is comparable to R-410A in use withboth POE32 and PVE68.

8

Opteon™ XL41 (R-454B)

Refrigerant

Figure 3. Thermal Stability Test Setup

Compatibility results are listed in Tables 5 and 6 for XL41
and R-410A evaluations with elastomers and POE oil.
Tables 8 and 9 have XL41 and R-410A evaluations withplastics and POE oil. Results demonstrate there are manyelastomers and plastics suitable for use with these refrigerants and the performance of XL41 and R-410A are very
similar. Compatibility results of XL41 with PVE lubricant
and various elastomers and plastics are listed in Tables 7
and 10. Results of XL41 and PVE lubricant were similar to
the POE counterparts, indicating adequate compatibility
with many elastomers and plastics. It should be recognizedthat this data reflects compatibility in sealed tube tests,
and that refrigerant compatibility in real systems can be
influenced by the actual operating conditions, the nature of
the polymers used, compounding formulations of specificpolymers, and the curing or vulcanization processes used.
Specific grades, additives, etc. can also vary and potentiallyaffect results for different polymers and other materials.
Components should always be tested under actual operating conditions before reaching final conclusions about theirsuitability.

Thermal Decomposition
Like R-410A, Opteon™ XL41 will decompose when
exposed to high temperature or flame sources. Decomposition may produce toxic and/or irritating compounds suchas hydrogen fluoride. The decomposition products released
will irritate the nose and throat. Therefore, it is important toprevent exposure to decomposition products by following
Chemours Safety Data Sheet (SDS) recommendations forhanding.
Compatibility Concerns with Mixing Refrigerants
While Opteon™ XL41 and R-410A are chemically compatible with each other, these two refrigerants should never bedeliberately mixed in a system. Mixing refrigerants violates
EPA section 608 and the resulting performance will be
unpredictable as the exact blend composition will be
unknown.
Materials Compatibility
Because Opteon™ refrigerants will be used in many different
applications, it is important to assess materials of construction for compatibility when designing new equipment,
retrofitting existing equipment, or preparing storage andhandling facilities.
Opteon™ XL41 was evaluated for compatibility with a widearray of plastics and elastomers commonly used in refrigeration and air conditioning applications. Sealed glass tubes
were prepared containing XL41, POE lubricant andplastic/elastomeric material and held at 100°C (212°F) for
two weeks. Testing was done using more severe conditions(100°C/212°F) than typical material testing (60°C/140°F).
Evaluations were also done with R-410A for comparison.
Additional XL41 glass tubes were prepared containing PVE
lubricant. After exposure, elastomers and plastics were
removed and measured for weight change, linear swell andchanges in hardness both immediately after removing fromthe sealed tube and also 24 hours after exposure.

9Opteon™ XL41 (R-454B)

Refrigerant

Compatibility with Elastomers
Table 5. XL41 Elastomers Compatibility w/POE – 0 and 24 hours after removing from sealed tubes
0 hr
Hardness
Change,Delta

0 hr% Weight
Change0 hr% Linear
Swell

0

5

2

1

1

10

4

-6

Epichlorohydrin

1

13

5

-8

Butyl Rubber

1

12

4

-3

EPDM

0

8

3

-10

Fluorosilicone

1

11

5

-10

HNBR

1

28

9

-8

XL41 + POE 32
Elastomers after 0 hrs

0 hr
RatingNeoprene C1276 -70
Neoprene C0873-70

NBR

1

20

8

-9

Fluorocarbon FKM V0747-75

1

22

11

-7

Viton™ A

1

22

10

-10

Viton™ GF

1

14

6

-9

XL41 + POE 32
Elastomers after 24 hrs

24 hr
Rating

24 hr% Weight
Change24 hr% Linear
Swell

24 hr
Hardness
Change,Delta

Neoprene C1276 -70

0

2

1

3

Neoprene C0873-70

0

8

3

-6

Epichlorohydrin

0

9

3

-6

Butyl Rubber

0

9

3

-4

EPDM

0

5

2

-7

Fluorosilicone

0

4

2

-9

HNBR

1

17

6

-7

NBR

1

11

5

-8

Fluorocarbon FKM V0747-75

1

13

7

-7

Viton™ A

1

13

6

-12

Viton™ GF

0

7

3

-9

Rating:0 < 10% weight gain, and < 10% linear swell and < 10 hardness change
1 > 10% weight gain, or > 10% linear swell or > 10 hardness change
2 > 10% weight gain, and > 10% linear swell and > 10 hardness change

10Opteon™ XL41 (R-454B)

Refrigerant

Table 6. R-410A Elastomers Compatibility w/POE – 0 and 24 hours after removing from sealed tubes

R-410A + POE 32
Elastomers after 0 hrs

0 hr
Rating0 hr% Weight
Change0 hr% Linear
Swell

0 hr
Hardness
Change,Delta

Neoprene C1276 -70

0

4

2

-4

Neoprene C0873-70

0

9

3

-7

Epichlorohydrin

1

10

3

-11

Butyl Rubber

0

9

4

-5

EPDM

1

7

2

-10

Fluorosilicone

1

9

3

-13

HNBR

1

27

8

-9

NBR

1

19

7

-11

Fluorocarbon FKM V0747-75

1

20

9

-15

Viton™ A

1

20

8

-10

Viton™ GF

1

14

5

-7

R-410A + POE 32
Elastomers after 24 hrs

24 hr
Rating

24 hr% Weight
Change24 hr% Linear
Swell

24 hr
Hardness
Change,Delta

Neoprene C1276 -70

0

2

1

-2

Neoprene C0873-70

0

7

3

-6

Epichlorohydrin

1

7

3

-11

Butyl Rubber

0

8

3

-3

EPDM

0

5

2

-7

Fluorosilicone

1

4

2

-10

HNBR

1

19

6

-8

NBR

1

12

5

-10

Fluorocarbon FKM V0747-75

1

14

7

-12

Viton™ A

1

13

6

-8

Viton™ GF

0

8

3

-6

Rating:0 < 10% weight gain, and < 10% linear swell and < 10 hardness change
1 > 10% weight gain, or > 10% linear swell or > 10 hardness change
2 > 10% weight gain, and > 10% linear swell and > 10 hardness change

11Opteon™ XL41 (R-454B)

Refrigerant

Table 7. XL41 Elastomers Compatibility w/ PVE – 0 and 24 hours after removing from sealed tubes

XL41 + PVE 32
Elastomers after 0 hrs

0 hr
Rating0 hr% Weight
Change0 hr% Linear
Swell

0 hr
Hardness
Change,Delta

Neoprene C1276 -70

0

2

1

-3

Neoprene C0873-70

0

6

3

-8

Epichlorohydrin

1

7

3

-12

Butyl Rubber

1

12

4

-17

EPDM

1

10

3

-13

Fluorosilicone

1

8

4

-14

HNBR

1

15

5

-7

NBR

1

11

4

-11

Fluorocarbon FKM V0747-75

1

13

7

-14

Viton™ A

1

13

6

-14

Viton™ GF

1

11

5

-13

XL41 + PVE 32
Elastomers after 24 hrs

24 hr
Rating

24 hr% Weight
Change24 hr% Linear
Swell

24 hr
Hardness
Change,Delta

Neoprene C1276 -70

0

-1

0

1

Neoprene C0873-70

0

4

2

-5

Epichlorohydrin

0

4

2

-9

Butyl Rubber

1

9

3

-13

EPDM

1

6

2

-11

Fluorosilicone

0

3

1

-6

HNBR

0

8

2

-5

NBR

0

5

1

-6

Fluorocarbon FKM V0747-75

1

7

4

-10

Viton™ A

1

7

3

-11

Viton™ GF

1

6

3

-11

Rating:0
1
2< 10% weight gain, and < 10% linear swell and < 10 hardness change> 10% weight gain, or > 10% linear swell or > 10 hardness change> 10% weight gain, and > 10% linear swell and > 10 hardness change

12Opteon™ XL41 (R-454B)

Refrigerant

Compatibility with Plastics
Table 8. XL41 Plastics Compatibility w/POE – 0 and 24 hours after removing from sealed tubes

XL41 + POE 32
Plastics after 0 hrs

0 hr
Rating0 hr% Weight
Change0 hr% Linear
Swell

0 hr
Hardness
Change,
Delta

Polyester

1

14

4

-3

Nylon resin

0

0

0

1

Polyamide-imide

0

0

0

0

Polyphenylene sulfide

0

1

0

-1

PEEK

0

1

0

1

Nylon

0

0

1

0

PTFE

0

1

1

-1

XL41 + POE 32
Plastics after 24 hrs

24 hr
Rating

24 hr% Weight
Change24 hr% Linear
Swell

24 hr
Hardness
Change,
Delta

Polyester

0

9

3

-1

Nylon resin

0

0

0

-1

Polyamide-imide

0

0

0

0

Polyphenylene sulfide

0

0

0

0

PEEK

0

1

0

1

Nylon

0

0

0

-3

PTFE

0

1

1

-1

Rating:0 < 10% weight gain, and < 10% linear swell and < 10 hardness change
1 > 10% weight gain, or > 10% linear swell or > 10 hardness change
2 > 10% weight gain, and > 10% linear swell and > 10 hardness change

13Opteon™ XL41 (R-454B)

Refrigerants

Table 9. R-410A Plastics Compatibility w/POE – 0 and 24 hours after removing from sealed tubes

R-410A + POE 32
Plastics after 0 hrs

0 hr
Rating0 hr% Weight
Change0 hr% Linear
Swell

0 hr
Hardness
Change,
Delta

Polyester

1

14

2

0

Nylon resin

0

0

3

0

Polyamide-imide

0

1

0

1

Polyphenylene sulfide

0

0

0

-2

PEEK

0

1

0

0

Nylon

0

1

0

0

PTFE

0

2

1

0

R-410A + POE 32
Plastics after 24 hrs

24 hr
Rating

24 hr% Weight
Change24 hr% Linear
Swell

24 hr
Hardness
Change,
Delta

Polyester

0

9

2

0

Nylon resin

0

0

2

1

Polyamide-imide

0

0

0

0

Polyphenylene sulfide

0

0

0

-1

PEEK

0

1

0

0

Nylon

0

1

0

0

PTFE

0

1

1

1

Rating:0
1
2< 10% weight gain, and < 10% linear swell and < 10 hardness change> 10% weight gain, or > 10% linear swell or > 10 hardness change> 10% weight gain, and > 10% linear swell and > 10 hardness change

14Opteon™ XL41 (R-454B)

Refrigerants

Table 10. XL41 Plastics Compatibility w/ PVE – 0 and 24 hours after removing from sealed tubes

XL41 + PVE 32
Plastics after 0 hrs

0 hr
Rating0 hr% Weight
Change0 hr% Linear
Swell

0 hr
Hardness
Change,
Delta

Polyester

1

11

3

2

Nylon resin

1

1

-11

1

Polyamide-imide

0

1

0

0

Polyphenylene sulfide

0

1

0

-1

PEEK

0

1

0

-2

Nylon

0

1

0

3

PTFE

0

2

1

1

24 hr
% Linear
Swell

24 hr
Hardness
Change,Delta

XL41 + PVE 32
Plastics after 24 hrs

24 hr
Rating

24 hr% Weight
ChangePolyester

0

6

2

2

Nylon resin

1

1

-11

1

Polyamide-imide

0

0

0

-1

Polyphenylene sulfide

0

1

0

0

PEEK

0

1

0

-1

Nylon

0

1

0

3

PTFE

0

1

1

1

Rating:0
1
2< 10% weight gain, and < 10% linear swell and < 10 hardness change> 10% weight gain, or > 10% linear swell or > 10 hardness change> 10% weight gain, and > 10% linear swell and > 10 hardness change

Compatibility with Desiccants
In refrigeration systems, keeping the refrigerant and lubricant free of moisture is very important. Dryers filled with moisture-absorbing desiccant are typically used to prevent moisture accumulation. The required desiccant amount/type
depends on 1) refrigerant solubility and reactivity with water, 2) rate of water permeation into a system, and 3) the desired
level of system dryness. Opteon™ XL41 has generally been found to be compatible with current R-410A driers. Consult
with the dryer manufacturer to confirm compatibility.
Lubricants
Miscibility
A range of refrigerant and oil mixture compositions were prepared in sealed glass tubes. The miscibility of Opteon™ XL41
was tested with POE32 and PVE68 lubricants. The tubes were heated to 75°C (167°F) and then cooled to -50°C (-58°F)
and observed in 5K (9ºF) increments. Testing was also done with R-410A for comparison.

15

Opteon™ XL41 (R-454B)

Refrigerants

Figure 4. Miscibility with POE32

Miscibility with POE32
200

87

Temperature (°F)

47

100

27
50

7
-13

0

Temperature (°C)

67

150

-33
-50

-100
0.25

-53
-73
0.35

0.45

0.55

0.65

0.75

0.85

0.95

Weight Fraction of Refrigerant
R-410A

R-454B

Figure 5. Miscibility with PVE68

Miscibility with PVE68
200

87

Temperature (°F)

47

100

27
50

7
-13

0

-33
-50

-100
0.25

-53
-73
0.35

0.45

0.55

0.75

0.65

Weight Fraction of Refrigerant
R-454B

16

0.85

0.95

Temperature (°C)

67

150

Opteon™ XL41 (R-454B)

Refrigerants

Daniel Plots
Daniel plots for the baseline R-410A with POE as well as R-454B with POE and PVE were generated.
Figure 6. R-410A and POE32 Daniel Plot

Figure 7. R-454B and POE32 Daniel Plot

17

Opteon™ XL41 (R-454B)

Refrigerants

Figure 8. R-454B and PVE68 Daniel Plot18

Opteon™ XL41 (R-454B)

SafetyDecomposition
How can I tell if a refrigerant has thermally decomposed?
The strong odors released from the thermally decomposed
refrigerant will provide early warning and likely result in an
attempt to evacuate the area. The fumes released fromthermal decomposition will likely irritate the nose, throat,eyes, and skin. Follow all Chemours recommendations
listed in the SDS for refrigerant handling to prevent
refrigerant thermal decomposition and other hazards.
Are thermal decomposition products hazardous?
Yes. The acidic vapors produced are dangerous, and thearea should be evacuated immediately and ventilated toprevent exposure to personnel. Anyone exposed to thethermal decomposition products should be taken to fresh
air and medical treatment sought immediately. The
exposure area should not be re-entered until it is deemedsafe by the appropriate authorities.
Inhalation Toxicity
Are Opteon™ XL refrigerants toxic?
These refrigerants have an excellent safety profile and canbe safely used when handled in accordance with Chemours recommendations and exposures are maintained at or
below appropriate occupational exposure limits (OELs).
What are OELs?
Occupational exposure limits are airborne chemical
concentrations that are expected to be safe for nearly all
healthy workers who may be exposed over a working
lifetime. Occupational exposure limits are set by several
organizations or manufacturers. Some examples of OELs
are the Workplace Environment Exposure Limit (WEEL),
the Threshold Limit Value (TLV), and the Allowable Exposure Limit (AEL). Consult the latest version of ASHRAE
standard 34 as well as the R-454B SDS for updated
exposure limits.

Refrigerants

epinephrine (adrenaline). Cardiac sensitization associatedwith Opteon™ XL refrigerant components is well above any
concentrations expected in the workplace, and ranges from
20,000 to 150,000 ppm or higher in laboratory animals. By
comparison, a cardiac sensitization response is observedwith CFC-11 and CFC-12 under similar experimental
conditions at approximately 5,000 and 50,000 ppm andhigher, respectively. Because of possible disturbances ofcardiac rhythm, catecholamine drugs such as epinephrine
should be considered only as a last resort in life-threatening
emergencies.
Can inhaling Opteon™ XL refrigerant vapors
cause suffocation?
Any substance can cause suffocation if the chemical
concentration is high enough to displace the oxygen needed
to maintain a healthy breathing atmosphere. If a large
release of refrigerant occurs, vapors can concentrate near
the floor or in low areas, displace available oxygen, andpotentially cause suffocation. In the event of a large spill or
leak, always wear proper respiratory and other personal
protective equipment per Chemours SDS guidelines.
Canister-type respiratory masks do not provide adequate
protection when entering an enclosed space with high levelsof refrigerant vapors. These should be used for escapepurposes only. Use self-contained breathing apparatus or an
air-line respirator when entering confined areas, such as
tanks or basement areas, where vapors may have accumulated. Test all work areas for available oxygen using appropriate monitoring equipment before entering. Place asecond employee outside the work area when you enter anduse a lifeline to that employee.
Intentional misuse or deliberate inhalation of any hydrocarbon or fluorocarbon refrigerant is dangerous, as they may
disrupt heart rhythm and cause death without warning.
How can I work safely on systems in enclosed areas?
1.

Piping for pressure relief devices must be appropriatelyrouted per ASHRAE standard 15. In many cases, thepiping will be required to be routed outdoors and awayfrom all air intakes to the building.

2.

Make certain the area is well-ventilated. Use auxiliary
ventilation such as blowers or fans, if necessary, todisperse refrigerant vapors.

3.

Test the work area for available oxygen before entering
enclosed areas. Do not use a leak monitor to test foroxygen. A refrigerant leak detector will not tell you if
adequate oxygen is present to sustain life.

4.

Install refrigerant leak detection and oxygen monitoring
equipment in the work areas. Refer to ASHRAE Standard 15, “Safety Code for Mechanical Ventilation,” forventilation and air monitoring requirements for equipment rooms.

What are common symptoms of overexposure?
Inhalation abuse and misuse may be associated withtemporary central nervous system depression with
narcosis (sleepiness), lethargy, weakness, dizziness, afeeling of intoxication, incoordination, unconsciousness,and may be fatal.
What is cardiac sensitization?
Cardiac sensitization is a situation where the body has aheightened sensitivity to adrenaline. Under such circumstances, the heart rhythm may be affected with a potentially fatal outcome. Cardiac sensitization potential has
been observed with many hydrocarbons and fluorocarbons. In experimental cardiac sensitization screening
studies, test animals were exposed to various levels ofrefrigerant vapor followed by injection of high levels of

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Opteon™ XL41 (R-454B)

Refrigerants

What should I do if a large refrigerant leak or spill occurs?

irritating fumes. In addition, a torch flame can become
dramatically larger or change color if used in high concentrations of many refrigerants, including R-134a. Always
recover refrigerants, evacuate equipment, and ventilate
work areas properly before using any open flames.

Do not attempt to enter the area to repair equipment untilthe vapors are dispersed OR until you are equipped withproper breathing apparatus. Evacuate everyone until thearea has been ventilated. Use blowers or fans to circulate
air at the floor level and in any basement or low areas.
• Appropriate respiratory protection equipment should
be readily available in case of a large release.
Personnel should be trained how to use this equipment.
• Consult the SDS for additional safety and use
information.
Can I smell Opteon™ XL Products?
Most refrigerants have such a faint odor that they can bedifficult to detect, even at dangerous levels. Do not use
smell as a test for safe levels of refrigerants in a workarea. Frequent leak checks and air monitoring are the only
adequate ways to determine that areas are safe for entry
and work.
Skin and Eye Contact

Equipment Designed for A2L Refrigerants
Users must read and understand the SDS before handlingor using Opteon™ XL refrigerants. Users should also follow
all pertinent safety information provided by the equipment
manufacturer. Failure to follow the SDS and equipment
manufacturer’s instructions could result in injury or death.
An SDS can be obtained for any Opteon™ refrigerant fromthe Chemours web site or from any Chemours refrigerants
distributor.
Due to the flammability rating, Opteon™ XL refrigerants areintended for use in equipment specifically designed forthese products and should always be used in accordancewith the relevant national or international standards.
Please consult the appropriate equipment manufacturer
regarding which refrigerants can be used in the equipment.
Mechanical Equipment Room Requirements

Is skin or eye contact with Opteon™ XL products hazardous?
At room temperature, refrigerant vapors have little effecton skin or eyes.
Always wear protective clothing, including long-sleeveclothing and gloves, when there is a risk of exposure toliquid refrigerants. Protection should include goggles andface shield to protect the eyes. If liquid refrigerant enters
your eyes, flush them with plenty of water and then seek
medical attention immediately.
Is frostbite a possible hazard?
In liquid form, this refrigerant can freeze skin or eyes on
contact, causing frostbite. If you are splashed with liquid,
immediately remove all clothing that contains refrigerant
to prevent additional freezing. Soak the exposed area inlukewarm water, not cold or hot. Do not use dressings orointments. Then seek medical attention immediately.
Flammability• Install an A2L flammable rated air monitor capable ofdetecting the refrigerant(s) used in concentrations up to
the OEL.
• Install suitable alarms that activate at or below the
refrigerant’s OEL, and that will alert persons outside ofthe equipment room that a leak condition exists.
• Route relief valve discharge headers and purge units
outdoors, away from all air intakes to building or per
local codes and regulations.
• Install local exhaust to ventilate the work area in theevent that the air monitor alarm point is exceeded per
local codes and regulations.
• Consult the latest revision of ASHRAE standard 15 foradditional requirements
Servicing Equipment Containing A2L Refrigerants
Many of the same service items can be used for servicing
A2L refrigerants versus R-410A. However, some service
equipment, due to the electrical components and motors,
should be specifically designed for use with A2L refrigerants. All service should be conducted in a safe manner andwith respect to the guidelines given by the relevant codesand standards for your country/region.

As mentioned previously, Opteon™ XL41 has been
assigned a safety classification of A2L based on flammability tests conducted according to ASHRAE Standard 34
and ISO 817 guidelines. This refrigerant can be usedsafely following industry and Chemours recommended
guidelines. Before working with this refrigerant, read allsafety data information and Chemours handling guidelines.
Refrigerants should not be exposed to open flames orelectrical heating elements. High temperatures and flames
can cause refrigerants to decompose, releasing toxic and

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Opteon™ XL41 (R-454B)

Refrigerants

Table 11. Comparison of service equipment for Opteon™ XL products compared to R-410A
Service Item

R-410A

Opteon™ XL

Gauge manifold

RoutineRoutineCharging hose

RoutineRoutineTorque wrench

RoutineRoutineFlare toolRoutineRoutinePipe cutter

RoutineRoutinePipe bender

RoutineRoutineHex wrench

RoutineRoutine

Ventilation Fan, if low ventilation

RoutineRoutineScalesRoutineRoutineVacuum pumpRoutineRoutineDry Powder/CO2 Fire Extinguisher

Not necessary

Chemical compatible

Gas Detector

Routine2L approved

Electronic leak detector

Routine2L approved

Refrigerant recovery cylinder

RoutineUpdated labeling(check available guidelines)

Recovery machines

Routine2L approved

How should I correctly braze or weld piping on A2L refrigeration or air-conditioning equipment?
•
•
•
•
•
•
•
•
•
•
•
•

Review the refrigerant SDS and service instruction manuals provided by the equipment manufacturers.
Review the relevant codes/regulations when servicing equipment.
Be sure to set-up any safety barriers/sign as required before beginning servicing.
Make certain there is adequate ventilation in the work area and that you have tested the air space for safe levels ofrefrigerant vapor and oxygen.
Evacuate the Opteon™ XL refrigerant from the equipment you will be repairing.
Recover the refrigerant into a properly rated and marked recovery cylinder.
Do not vent refrigerant.
Purge system with nitrogen if necessary, per code. If not, open the system and ensure no residual pressure is present.
Drain all lubricant possible from the area to be welded to prevent fires.
Leave system open during repair to prevent possible pressure buildup.
Use auxiliary ventilation to disperse any fumes or decomposing refrigerant that may have remained in the piping or
equipment during the repair process.
If you notice an increase in the size or shape of the open flame, or the flame changes color, stop work immediately andre-ventilate the equipment. This flame enhancement effect should be a warning that too much refrigerant vapor is stillpresent around the equipment.

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Opteon™ XL41 (R-454B)

Refrigerants

Air Monitors and Leak Detection

Compound-Specific Detectors

Leak detectors exist not only for pinpointing specificleaks, but also for monitoring an entire room on a continual
basis for the absence of oxygen or presence of refrigerant.
There are several reasons for leak pinpointing or area
monitoring, including conservation of refrigerants, protection of valuable equipment, reduction of fugitive emissions,and protection of employees.

The most complex detectors, which are also the mostexpensive, are compound-specific detectors. These units
are typically capable of detecting the presence of a single
species, without interference from other compounds.

Prior to the purchase of a detector or monitor, make sure
you consider your requirements or criteria for the monitor,
such as sensitivity, detection limits, selectivity, productflammability, and/or flammability limits in air. Air monitors
and leak detectors should be approved for use with
R-454B.
Equipment should never be leak tested with a pressurized
mixture of Opteon™ XL41 and air. Pressurized mixtures ofdry nitrogen and Opteon™ XL41, however, can be used forleak testing.
Types of Detectors
Using selectivity as a criteria, leak detectors can beplaced into one of three categories: nonselective, halogenselective, or compound-specific. In general, as the specificity of the monitor increases, so does the complexity andcost. Other methods used to find leaks are to add fluorescent additives to the system or coat the suspect area witha soapy water solution and look for soap bubbles.

Fluorescent Additives (UV Dyes)
Fluorescent additives are not uncommon for use inrefrigeration systems. These additives, invisible underordinary lighting, but visible under ultraviolet (UV) light, areused to pinpoint leaks in systems. The additives are
typically placed into the refrigeration lubricant when thesystem is serviced. Leaks are detected by using a UV light
to search for additive that has escaped from the system.
The color of the additive when subjected to UV light isnormally a bright green or yellow and is easily seen.
As a leak pin-pointer, fluorescent additives work very well,because large areas can be rapidly checked by a single
individual. And, the use of high-quality battery-powered UVlights has made this task even simpler. One drawback to
the use of additives is that some areas may be visuallyunobservable, due to cramped spaces.
A cautionary note concerning the use of fluorescentadditives: the compatibility of the specific additive with the
lubricant and refrigerant should be tested prior to use. For
detailed information about which lubricants and refrigerants have been tested with which additives, contact thefluorescent additive manufacturers.

Nonselective Detectors
Nonselective detectors are those that will detect any typeof emission or vapor present, regardless of its chemicalcomposition. These detectors are typically quite simple touse, very durable, inexpensive, and usually portable.
However, their inability to be calibrated, long-term drift,lack of selectivity, and lack of sensitivity limit their use forarea monitoring.
Halogen-Selective Detectors
Halogen-selective detectors use a specialized sensor thatallows the monitor to detect compounds containing
fluorine, chlorine, bromine, and iodine, without interference
from other species. The major advantage of such a
detector is a reduction in the number of “nuisancealarms”— false alarms caused by the presence of somecompound in the area other than the target compound.
These detectors are typically easy to use, feature higher
sensitivity than the nonselective detectors (detection
limits are typically <5 ppm when used as an area monitor
and <0.05 oz/yr when used as a leak pin-pointer), and arevery durable. In addition, due to the partial specificity ofthe detector, these instruments can be calibrated easily.

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Opteon™ XL41 (R-454B)

Refrigerants

Shipping, Storage, and Handling• Remove liquid from the cylinder when charging any
Opteon™ XL refrigerant blend. Once removed from thecylinder, it can be flashed to vapor for charging.
• Verify proper hookup of charging hoses. Do not charge
to the discharge side of the compressor.
• Open valves slowly and transfer refrigerant• Do not pressurize systems or vessels containing theserefrigerants with air for leak testing or any other purpose.
• No not tamper with any relief devices on cylinders or
refrigerant equipment.
• Do not drop, dent, or mechanically abuse containers.

Shipping Information (Cylinders, Half-Ton, Ton, and ISO
Containers)
For information on shipping containers in your specificregion, contact your local Chemours refrigerant distributor
or technical service representative. Components ofOpteon™ XL41 are subject to a Significant New Use Rule
(SNUR) and in the United States should be used only inapplications listed in the Opteon™ XL41 SDS regulatory
section. Consult the transport information section of the
SDS for appropriate shipping information.
Cylinders Storage and Handling
Depending upon the region, Chemours offers a wide
variety of returnable cylinders. Details on available
cylinders can be obtained from your local Chemours
representative.
General handling precautions for refrigerant containers
include the following:• Keep cylinders at temperature not exceeding 52 °C(125°F).
• Avoid skin contact with liquid refrigerant, as it may
cause frostbite.
• Never apply direct flame or live steam to a container orvalve.
• Never use a lifting magnet or sling (rope or chain) whenhandling containers. A crane may be used when a safe
cradle or platform is used to hold the container.
• Never use container for rollers, supports, or any purpose
other than to store refrigerants.
• Never attempt to repair or alter containers or valves.
• Never force connections that do not fit. Make sure thethreads on the regulators or other auxiliary equipment
are the same as those on the container valve outlet.
• When containers are not in use, keep valves tightly
closed with valve caps and hoods in place.
• Protect containers from any object that will result incuts or other abrasion in the surface of the metal.
• Use a vapor recovery system to collect refrigerant
vapors from lines after unloading a container.
• Do not roll large cylinders. Use a hand cart or dolly to
move.
• Do not store cylinders with or near incendiary items.
• Do not pierce or burn the cylinder, except when following Dispose-A-Can™ (DAC™) cylinder disposal procedures.
• Never refill disposable cylinders with anything. The
shipment of refilled disposable cylinders is prohibited by
EU and U.S. regulations.
• Never refill cylinders.
• If cylinders must be stored outside, store under a roof toprotect from weather extremes.
• If a large number of cylinders must be stored in an
unoccupied space, potentially exceeding the lower
flammability limit (LFL) per room volume in the event ofcatastrophic leak, be sure to check with local regulations, country codes, and fire officials for additional
guidance.

Filling and Charging Operations• Before evacuating cylinders or refrigeration equipment,
any remaining refrigerant should be removed by arecovery system.
• Vacuum pump discharge lines should be free of restrictions that could increase discharge pressures and resultin the formation of combustible mixtures.
• Cylinders or refrigeration equipment should be evacuated at the start of filling and should never be filled while
under positive air pressure.
• Filled cylinders should periodically be analyzed for air(non-absorbable gas [NAG]).
Bulk Storage Systems
Opteon™ XL41 is flammable and needs to be considered in
the design and maintenance of bulk delivery and storage
facilities. Before designing any systems, read all Chemours
safety information, and follow all local/regional regulations
that may apply to bulk delivery and storage facilities,
including all site safety requirements.
Chemours can supply storage systems to its Opteon™
XL41 customers. The type of systems can vary fromregion to region and from customer site to customer site.
Some systems are prefabricated, tested, and ready to
install on-site. The units are designed to optimize economy, efficiency, and safety in the storage and dispensing ofrefrigerants. The delivered systems include all components, such as storage tanks, pumps, piping, valves,motors, and gauges, as an integrated unit. All systems areequipped with low emission connections to prevent
emissions during deliveries.
Your Chemours Marketing Representative can arrange for
guidance on site selection, purchase, installation, startup,and maintenance.

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Opteon™ XL41 (R-454B)

Refrigerants

Bulk Storage Preparation

handling containers. Eye protection should comply with
EN 166 or ANSI Z87.1. Additionally, wear a face shieldwhen the possibility exists for face contact due tosplashing, spraying, or airborne contact with this material. Protective gloves should comply with EN 374 or U.S.
OSHA guidelines. The choice of an appropriate glove
does not depend only on its material, but also on otherquality features, and is different from one producer tothe other. Please review the instructions regarding
permeability and breakthrough time that are provided by
the glove supplier. Also take into consideration thespecific local conditions under which the product is used,such as the danger of cuts, abrasion, and potential
contact time.
• Do ensure that the bulk tank and lines are clean before
starting the commissioning process. If these are notclean or suspected of being fouled with welding flux, oil,or debris, clean the contaminated surfaces with mild
detergent or even clean warm water.
• Do ensure that the bulk tank and lines are dry. Purge thebulk tank and lines with dry nitrogen (99.99% purity),
which has a maximum moisture specification of 10 ppm.
• Do ensure that the bulk tank and lines are evacuated toat least 5000 microns vacuum prior to filling withrefrigerant. This step should take only 1–2 days but cantake longer depending on volume to be evacuated andthe equipment utilized.
• Do monitor tank pressures routinely

Bulk Storage Tank
Bulk storage tanks will need to meet required regulatorycodes and standards. Conversion from an existingR-410A bulk storage tank to R-454B can require significant planning to meet the requirements needed for
flammable material storage. Storage tanks built to thespecifications of the Pressure Equipment Directive (PED)
97/23/EC of the EU or the American Society of Mechanical Engineers (ASME) Pressure Vessel Code are required
to have a metal nameplate indicating each tank’s maximum
allowable working pressure (MAWP). The rating must be
400 psig (2859 kPa abs) or higher for Opteon™ XL41
service. The set pressure and capacity of the relief
devices on the top of the tanks must also be verified andchanged, if necessary.
Depending on the history of the bulk storage container
shell, there will be a need to ensure there is no degradationof the interior shell surfaces (no pitting, gouges, etc.). The
same issue will apply to the exterior of the bulk storage
container. New or refurbished bulk tanks will need to bechecked for possible manufacturing residue particle
debris, including cleaning agents or solutions, that could
negatively impact product quality.
Due to the flammability of Opteon™ XL41, it is recommended that an on-site visit be conducted by appropriate
personnel to verify potential for tank conversion andnecessary steps for this process. Your Chemours Marketing Representative can arrange for guidance on site
selection, purchase, installation, startup, and maintenance.
Piping and Lines
Pipelines that convey R-454B will have to be compliant
for flammable gas. In general, carbon steel or stainless-steel lines that are used for R-410A can be re-used
for R-454B, but need to be checked for additional flammable gas requirements. Changing the lines from R-410A to
R-454B will also require that new O-rings and seals areused. The general rule is that once the line is broken, theseals/O-rings lose integrity and can be a potential leakpoint. Therefore, complete replacement of seals, gaskets
and O-rings is common.
There has been a tendency to overlook the small points
during refrigerant line installations. One common pointthat can have major impact on future refrigerant quality isline cleanliness. Even though lines are new, there can still
be residual particles and processing chemicals from thewelding or other manufacturing processes that cannegatively impact system performance, therefore, it isimperative that proper cleaning procedures are used.
Bulk Tank and Line Preparation Do’s and Don’ts
Do’s• Use personal protective equipment, such as safety
glasses with side shields, gloves, and safety shoes, when

Don’ts• Don’t use strong cleaning agents to clean the bulk tank,lines, or filling equipment. While Opteon™ XL41 has goodmaterial compatibility and stability, it is not compatible
with strong oxidizers—such as those found in peroxidetype cleaning agents. Cleaning agents that bill themselves as natural or friendly may also contain strongoxidizing agents and must be avoided.
• Don’t let extraneous chemicals, such as thread locking
agents or sealants, get into the system and possibly leadto contamination and incompatibilities. There are at least
several hundred different thread locking agents, andwhile one from a particular family may be compatible with
Opteon™ XL41, that does not ensure that all products
are compatible. These may have a negative interaction
with Opteon™ XL41, generating a white material.
• Don’t let excess air or moisture get into the system. As
with all refrigerants, excessive amounts of air andmoisture can lead to poor system performance. There
have been some instances where system contamination
has led to the appearance of a white material that canappear as a whitish residue or string. To avoid, do not
overlook the small points in refrigerant transfer, storage,
and handling installations. Common points that can havea major impact on refrigerant quality are storage tanks,transfer lines, and package cleanliness. Never fillsystems while under positive air pressure.
• Don’t allow tank pressure to exceed the maximum
allowable working pressure when filling with Opteon™
XL41. Relief devices on either the tanks or the supply
system should be present and in good operating condition.
• Don’t connect air lines to storage tanks.
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Opteon™ XL41 (R-454B)

Refrigerants

Material Compatibility Concerns

Reclamation

Most metal components suitable for use with R-410A are
also compatible with Opteon™ XL41, including standard
types of carbon steel, aluminum, and copper. Someelastomeric or non-metallic components suitable for
R-410A may not be adequate. However, manufacturing ofmaterials varies regionally across manufacturers. Therefore, all elastomeric or nonmetallic components throughout the system must be identified and their compatibility
with Opteon™ XL41 verified. See Material Compatibility
section for starting point guidelines. For complete reliability, any component that cannot be properly identified
should be replaced.

Reclamation refers to the reprocessing of used Opteon™
XL41 to new product specifications. Quality of reclaimed
product is verified by chemical analysis. Contact Chemours or one of its refrigerant distributors for further information.

In a fluorocarbon storage system, elastomers are mostcommonly found in:• Packing and seats of manual valves• Pressure-relief device seats• Flange and manway gaskets• Mechanical pump seals• Wet-end pump gaskets and O-rings• Filter O-rings• Sight-flow indicator gaskets• Back-pressure regulator diaphragms and O-rings

RecycleRecovery, Reclamation, Recycle, and Disposal

Disposal refers to the destruction of used Opteon™ XL41.
Disposal may be necessary when the refrigerant has
become badly contaminated and no longer meets theacceptance specifications of Chemours or other reclaimers. Licensed waste disposal firms are available for thispurpose. Be sure to check the qualifications of any firm
before sending them used Opteon™ XL41.

RecoveryRecovery refers to the removal of Opteon™ XL41 fromequipment and collection in an appropriate external
container. As defined by the U.S. Air Conditioning, Heating,and Refrigeration Institute (AHRI), a recovery does not
involve processing or analytical testing. Only Opteon™
XL41 approved recovery recycle recharge (R/R/R)
machines should be utilized.

Reclamation offers advantages as on-site refrigerant
recycling systems cannot guarantee complete removal ofcontaminants. Putting refrigerants that do not meet new
product specifications back into expensive equipment may
cause damage to the system and/or contaminate virginrefrigerant.

Refrigerant recycle refers to the removal of used refrigerant contaminants using devices that reduce oil, water,
acidity, and particulates. Recycle is usually a field or shop
procedure with no analytical testing of refrigerant. Before
using one of these devices with Opteon™ XL41, consult
the manufacturer to confirm compatibility.
DisposalStandards for recovery equipment are readily available.
Please check the appropriate regional regulations. Before
purchasing a specific recovery unit, check with the
manufacturer to be sure that it can be used to recoverR-454B refrigerant. Due to the 2L flammability rating of
Opteon™ XL41, equipment should be designed to handle
R- 454B. It is not adequate to use existing R-410A R/R/R
or recovery-only equipment with R-454B. Equipment usedshould meet all regulatory and industry standards.
Efficient recovery of refrigerant from equipment or
containers requires evacuation at the end of the recovery
cycle. Suction lines to a recovery compressor should beperiodically checked for leaks to prevent compressing air
into the recovery cylinder during evacuation. In addition,
the recovery cylinder pressure should be monitored andevacuation stopped in the event of a rapid pressure riseindicating the presence of air. The recovery cylinder
contents should then be analyzed for NAG, and therecovery system leak checked if air is present. Do notcontinue to evacuate a refrigeration system that has amajor leak.

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Opteon™ XL41 (R-454B)

Refrigerants

For more information on the Opteon™ family of refrigerants, or other refrigerant products, visit freon.com or call (800) 235-7882.
The information set forth herein is furnished free of charge and based on technical data that Chemours believes to be reliable. It is intended for use by persons having technical skill, attheir own risk. Because conditions of use are outside our control, Chemours makes no warranties, expressed or implied, and assumes no liability in connection with any use of thisinformation. Nothing herein is to be taken as a license to operate under, or a recommendation to infringe, any patents or patent applications.
© 2023 The Chemours Company FC, LLC. Opteon™ and any associated logos are trademarks or copyrights of The Chemours Company FC, LLC. Chemours™ and the Chemours Logo aretrademarks of The Chemours Company.
O-XL41PB (8/23)

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