Opteon™ 2P50
Developmental Dielectric
Heat Transfer Fluid

Physical, Dielectric, and Environmental Properties

Technical Information
Introduction
In response to the growing need for highperformance products with a low global warming
potential (GWP), Chemours has developed a
new heat transfer solution, Opteon™ 2P50, adevelopmental dielectric fluid for use in two phase
immersion and electronic cooling applications.
Opteon™ 2P50 is a developmental proprietaryhydrofluoroolefin fluid with zero ozone depletion
potential (ODP) and a very low GWP of 10 (AR6).
Opteon™ 2P50 provides excellent physicalproperties and performance characteristics as animmersion fluid: it is colorless, nonflammable, andsafe to use in the intended application.
Opteon™ 2P50 has no flash point, an auto-ignition
temperature of 554°C (1029.2°F), and a boilingpoint of 48.9°C (120.0°F), making it appropriate forreplacing PFPEs, HFEs, FKs, and PFCs in immersion
cooling applications.

PropertyUnits

Opteon™
2P50Boiling Point°C (°F)48.9 (120.0)

Liquid Density at 25°C

g/cm3

1.456

Vapor Pressure at 25°C

MPa0.040

Vapor Flammability, ASTM E-681% volnone

Solubility of H2O at 25°C

ppm

145

Liquid Viscosity at 25°C

cP

0.62

Critical Temperature°C (°F)

176 (348.8)

Critical Pressure

MPa

2.7

Surface Tension at 25°C

N/m

0.011

Heat of Vaporization at Boiling Pt.

kJ/kg·K

115

Liquid Thermal Conductivity at 25°C

W/m·K

0.073

Liquid Specific Heat at 25°C

kJ/kg·K

1.09

Global Warming Potential (AR6)100-yr ITH

10Ozone Depletion Potential (ODP)—0Dielectric Constant (ASTM D924)

N/A

1.82

Volume Resistivity (ASTM D1169)

Ohm·cm5.1x1014

Breakdown Voltage (ASTM D877)

kV/0.1 in

41.3(IEC 60156)

kV/2.5mm

59Flash Point (ASTM D93)

°C (°F)none

Auto-Ignition Temp (ASTM E659)°C (°F)554 (1029.2)

Occupational Exposure Limit(8 hour time-weighted average)

ppm

200

Opteon™ 2P50 | Developmental Dielectric Heat Transfer FluidMaterial Compatibility
MetalsElastomers

Opteon 2P50 developmental heat transfer fluid iscompatible with most metals. Exposures to stainlesssteel, copper, brass, and aluminum up to 175°C (347 °F)
for 1 week showed good stability as summarized below.
Opteon™ 2P50 is not compatible with strong bases;
therefore, contact with highly basic process materials
is not recommended. Contact with strong Lewis acids,
such as aluminum trichloride, alkali and alkaline earth
metals, powdered metals, and powdered metal salts, isalso not recommended.

Exposure to elastomers at 80ºC for 2 weeks
according to a modified ASHRAE 97 method areshown. Some reversible swelling is expected withpartially fluorinated elastomers. Consult with yourlocal Chemours thermal management representative
to help answer questions about specific materials
compatibility in your application.

™

Elastomer

WeightChange(%)

VolumeChange(%)

Hardness
ChangeRating1(pts, Shore
A hardness)

Metal

WeightChange (%)

SolventAppearance

Fluoride IC(ppm)

Neoprene
C1276 -70-0.2

0.4

00

Aluminum< 0.01

Clear, colorless< 0.2 ppm*

0.2

0.000Copper< 0.01

Clear, colorless< 0.2 ppm*

Neoprene
C0873-70
Epichlorohydrin-0.1-0.2-10Brass< 0.01

Clear, colorless< 0.2 ppm*

Butyl rubber

1.90.5-30Zn-plated steel< 0.01

Clear, colorless< 0.2 ppm*EPDM

1.20.4-20

Indium foil

-0.27

Clear, colorless< 0.2 ppm*

Fluorosilicone

16.9

12.6

-152Plastics

HNBR nitrile

1.1

1.3-20Opteon™ 2P50 is compatible with most plastics.
Exposure to plastics at 80ºC for 2 weeks according
to a modified ASHRAE 97 method showed goodcompatibility. Consult with your local Chemours
representative to help answer questions about specificmaterials compatibility in your application.

NBR nitrile

<-0.1

3.300

Fluorocarbon FKM

14.0

16.3

-122

Natural Rubber

1.4

2.600Silicone Rubber

4.3

3.3-40

PlasticWeight
Change(%)

VolumeChange(%)

Hardness
ChangeRating1

Nylon resin Zytel® 330-0.3

2.4

10

Nylon 6,6 Zytel® 101-0.3-0.1

00Torlon® polymer

-0.3

0.0

<-0.10Ryton® polymer

<-0.1

0.0

00

Teflon™

4.1

4.8-10HDPE

0.5-0.9-10

Polyurethane-1.0-0.3

20

Polypropylene

1.5

0.2

10

Polycarbonate

<-0.1

0.0

-10

PEEK

<-0.1

0.8

<-0.10

Bakelite

-0.7

0.8

10(pts, ShoreA hardness)

Additional material compatibility data obtained bySoxhlet extraction—as per Open Compute Project (OCP)
guidelines—are available upon request.

Storage and HandlingOpteon™ 2P50 is thermally stable and does not oxidize
or degrade during storage. It exhibits no flash point
and is designated as a nonflammable liquid (ASTM
D56). Refer to the Safety Data Sheet (SDS) andPUSH document for additional safety and handlinginformation.

Rating: 0 = excellent compatibility, 1 = acceptable, 2 = poor compatibility*Minimum detection limit
1Opteon™ 2P50 | Developmental Dielectric Heat Transfer FluidTemperature-Dependent Properties
Liquid Specific Heat & Thermal Conductivity

Liquid Viscosity & Density

The temperature dependence of liquid thermal
conductivity and of liquid specific heat forOpteon™ 2P50.

The temperature dependence of liquid viscosity and ofliquid density for Opteon™ 2P50.

Dissipation Factor

Dielectric Constant

The frequency dependence of dissipation factor
for Opteon™ 2P50.

The frequency dependence of dielectric constantfor Opteon™ 2P50.

Vapor Pressure
The temperature dependence of vapor pressure
for Opteon™ 2P50.

For more information on the Opteon™ family of refrigerants, or otherrefrigerants products, visit opteon.com or call (800) 235-7882.
The information set forth herein is furnished free of charge and based ontechnical data that Chemours believes to be reliable. It is intended for use by
persons having technical skill, at their own risk. Because conditions of use areoutside our control, Chemours makes no warranties, expressed or implied, andassumes no liability in connection with any use of this information. Nothingherein is to be taken as a license to operate under, or a recommendation toinfringe, any patents or patent applications.
© 2024 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 are trademarks of The Chemours Company.

Opteon™ 2P50 | Developmental Dielectric Heat Transfer Fluid