Material Safety Data Sheet 

Genetron® 152a 

Version 2 Revision Date 11/14/2007 Print Date 11/14/2007 

Page 1 / 9

SECTION 1. PRODUCT AND COMPANY IDENTIFICATION 

Product name : Genetron® 152a 

MSDS Number : 000000009883 

Product Use Description : Aerosol propellant 

Company : Honeywell International, Inc. 

101 Columbia Road 

Morristown, NJ 07962-1057 

For more information call : 800-522-8001 

 (Monday-Friday, 9:00am-5:00pm) 

In case of emergency call : Medical: 1-800-498-5701 

: Transportation: 1-800-424-9300 or 703-527-3887 

 : (24 hours/day, 7 days/week) 

SECTION 2. HAZARDS IDENTIFICATION 

Emergency Overview 

Form : Liquefied gas 

Color : colourless 

Odor : slight 

Hazard Summary : Warning! Container under pressure. Flammable. Gas reduces 

oxygen available for breathing. Causes asphyxiation in high 

concentrations. The victim will not realize that he/she is 

suffocating. Inhalation may cause central nervous system 

effects. May cause cardiac arrhythmia. May cause drowsiness 

and dizziness. Do not breathe vapour. Irritating to eyes and 

skin. Avoid contact with skin, eyes and clothing. At higher 

temperatures, (>250 C), decomposition products may include 

hydrofluoric acid (HF) and carbonyl halides. The ACGIH 

Threshold Limit Values (2007) for Hydrogen Fluoride are 

TLV-TWA 0.5 ppm and Ceiling Exposure Limit 2 ppm. 

Potential Health Effects 

Skin : Avoid skin contact with leaking liquid (danger of frostbite).

May cause frostbite.

Irritating to skin.

Eyes : Causes severe eye irritation.

May cause frostbite.

Ingestion : Unlikely route of exposure.

Effects due to ingestion may include:

Gastrointestinal discomfort
Material Safety Data Sheet 

Genetron® 152a 

Version 2 Revision Date 11/14/2007 Print Date 11/14/2007 

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Inhalation : Gas reduces oxygen available for breathing.

Causes asphyxiation in high concentrations. The victim will not 

realize that he/she is suffocating.

Inhalation may cause central nervous system effects.

May cause cardiac arrhythmia.

Vapours may cause drowsiness and dizziness.

Chronic Exposure : None known.

Carcinogenicity 

No component of this product present at levels greater than or equal to 0.1% is identified as a known or 

anticipated carcinogen by NTP, IARC, or OSHA. 

SECTION 3. COMPOSITION/INFORMATION ON INGREDIENTS 

Component CAS-No. Weight % 

1,1-Difluoroethane 75-37-6 100.00 

SECTION 4. FIRST AID MEASURES 

Inhalation : Move to fresh air. If breathing is irregular or stopped, administer 

artificial respiration. Use oxygen as required, provided a 

qualified operator is present. Call a physician. Do not give drugs 

from adrenaline-ephedrine group. 

Skin contact : After contact with skin, wash immediately with plenty of water. If 

there is evidence of frostbite, bathe (do not rub) with lukewarm 

(not hot) water. If water is not available, cover with a clean, soft 

cloth or similar covering. If symptoms persist, call a physician. 

Eye contact : Rinse immediately with plenty of water, also under the eyelids, 

for at least 15 minutes. In case of frostbite water should be 

lukewarm, not hot. If symptoms persist, call a physician. 

Ingestion : Unlikely route of exposure. As this product is a gas, refer to the 

inhalation section. Do not induce vomiting without medical 

advice. Call a physician immediately. 

Notes to physician 

Treatment : Because of the possible disturbances of cardiac rhythm, 

catecholamine drugs, such as epinephrine, should be used with 

special caution and only in situations of emergency life support. 

Treatment of overexposure should be directed at the control of 

symptoms and the clinical conditions. Treat frost-bitten areas as 

needed. 
Material Safety Data Sheet 

Genetron® 152a 

Version 2 Revision Date 11/14/2007 Print Date 11/14/2007 

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SECTION 5. FIRE-FIGHTING MEASURES 

Flash point : not applicable

Ignition temperature : 455 °C (851 °F)

Lower explosion limit : 3.7 %(V)

Upper explosion limit : 18 %(V) 

Flammability (solid, gas) : Extremely flammable gas.

Suitable extinguishing 

media 

: Flammable.

ASHRAE 34

In case of fire, allow gas to burn if flow cannot be shut off 

immediately.

Apply water from a safe distance to cool container and protect 

surrounding area.

Extinguishing media - small fires

Carbon dioxide (CO2)

Dry chemical

Extinguishing media - large fires

Water spray

Specific hazards during fire 

fighting 

: Flammable.

Contents under pressure.

Vapours are heavier than air and can cause suffocation by 

reducing oxygen available for breathing.

Flash back possible over considerable distance.

Fire or intense heat may cause violent rupture of packages.

Cool closed containers exposed to fire with water spray.

Do not allow run-off from fire fighting to enter drains or water 

courses.

In case of fire hazardous decomposition products may be 

produced such as:

Hydrogen fluoride

Carbon monoxide

Carbon dioxide (CO2)

Carbonyl halides

Special protective 

equipment for fire-fighters 

: In the event of fire, wear self-contained breathing apparatus.

In the event of fire and/or explosion do not breathe fumes.

Wear self-contained breathing apparatus and protective suit.

No unprotected exposed skin areas.

SECTION 6. ACCIDENTAL RELEASE MEASURES 

Personal precautions : Immediately evacuate personnel to safe areas.

Keep people away from and upwind of spill/leak.

Wear personal protective equipment. Unprotected persons 

must be kept away.
Material Safety Data Sheet 

Genetron® 152a 

Version 2 Revision Date 11/14/2007 Print Date 11/14/2007 

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Remove all sources of ignition.

Pay attention to flashback.

Avoid skin contact with leaking liquid (danger of frostbite).

Vapours are heavier than air and can cause suffocation by 

reducing oxygen available for breathing.

Avoid accumulation of vapours in low areas.

Provide adequate ventilation.

Unprotected personnel should not return until air has been 

tested and determined safe.

Ensure that the oxygen content is >= 19.5%.

Environmental precautions : Prevent further leakage or spillage if safe to do so.

The product evaporates readily.

Methods for cleaning up : Ventilate the area.

SECTION 7. HANDLING AND STORAGE 

Handling 

Handling : Handle with care.

Avoid inhalation of vapour or mist.

Do not get in eyes, on skin, or on clothing.

Wear personal protective equipment.

Use only in well-ventilated areas.

Pressurized container. Protect from sunlight and do not expose 

to temperatures exceeding 50 °C.

Follow all standard safety precautions for handling and use of 

compressed gas cylinders.

Use authorized cylinders only.

Protect cylinders from physical damage.

Do not puncture or drop cylinders, expose them to open flame or 

excessive heat.

Do not pierce or burn, even after use. Do not spray on a naked 

flame or any incandescent material.

Do not remove screw cap until immediately ready for use.

Always replace cap after use.

Advice on protection against 

fire and explosion 

: Container hazardous when empty.

Prevent the creation of flammable or explosive concentrations of 

vapour in air and avoid vapour concentration higher than the 

occupational exposure limits.

Keep product and empty container away from heat and sources 

of ignition.

The heavy vapours can overcome a considerable distance up to 

the source of ignition.

Storage 

Requirements for storage 

areas and containers 

: Pressurized container: Protect from sunlight and do not expose 

to temperatures exceeding 50°C. Do not pierce or burn, even 

after use.

Keep containers tightly closed in a dry, cool and well-ventilated 
Material Safety Data Sheet 

Genetron® 152a 

Version 2 Revision Date 11/14/2007 Print Date 11/14/2007 

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place.

Keep away from heat and sources of ignition.

Storage rooms must be properly ventilated.

Ensure adequate ventilation, especially in confined areas.

Protect cylinders from physical damage.

Store away from incompatible substances.

Store in original container.

SECTION 8. EXPOSURE CONTROLS / PERSONAL PROTECTION

Protective measures : Do not breathe vapour.

Avoid contact with skin, eyes and clothing.

Ensure that eyewash stations and safety showers are close to 

the workstation location.

Engineering measures : General room ventilation is adequate for storage and handling.

Perform filling operations only at stations with exhaust 

ventilation facilities.

Eye protection : Do not wear contact lenses.

Wear as appropriate:

Safety glasses with side-shields

If splashes are likely to occur, wear:

Goggles or face shield, giving complete protection to eyes

Hand protection : Leather gloves

In case of contact through splashing:

Protective gloves

Neoprene gloves

Polyvinyl alcohol or nitrile- butyl-rubber gloves

Skin and body protection : Avoid skin contact with leaking liquid (danger of frostbite).

Wear cold insulating gloves/face shield/eye protection.

Respiratory protection : In case of insufficient ventilation wear suitable respiratory 

equipment.

Wear a positive-pressure supplied-air respirator.

Vapours are heavier than air and can cause suffocation by 

reducing oxygen available for breathing.

For rescue and maintenance work in storage tanks use 

self-contained breathing apparatus.

Hygiene measures : Handle in accordance with good industrial hygiene and safety 

practice.

Ensure adequate ventilation, especially in confined areas.

Avoid contact with skin, eyes and clothing.

Remove and wash contaminated clothing before re-use.

Keep working clothes separately.

When using, do not eat, drink or smoke.

Exposure Guidelines

1,1-Difluoroethane 75-37-6 WEEL TWA 1,000 ppm 2,700 mg/m3
Material Safety Data Sheet 

Genetron® 152a 

Version 2 Revision Date 11/14/2007 Print Date 11/14/2007 

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 HONEYWELL TWA 1,000 ppm

SECTION 9. PHYSICAL AND CHEMICAL PROPERTIES 

Form : Liquefied gas 

Color : colourless 

Odor : slight 

Molecular Weight : 66.06 g/mol 

pH : neutral

Melting point/range : -117 °C (-179 °F)

Boiling point/boiling range : -24.7 °C (-12.5 °F)

Vapor pressure : 6,012 hPa 

at 21.1 °C (70.0 °F) 

Vapor pressure : 13,203 hPa 

at 54.4 °C (129.9 °F) 

Relative vapour density : 2.29 

(Air = 1.0) 

Density : 0.909 g/cm3 

at 21.1 °C (70.0 °F) 

Water solubility : 0.13 g/l 

SECTION 10. STABILITY AND REACTIVITY 

Conditions to avoid : Heat, flames and sparks.

Pressurized container. Protect from sunlight and do not expose 

to temperatures exceeding 50 °C.

Decomposes under high temperature.

Some risk may be expected of corrosive and toxic 

decomposition products.

 

Materials to avoid : Finely divided aluminium

Potassium

Calcium

Powdered metals

Aluminium

Magnesium

Zinc

Hazardous decomposition 

products 

: Halogenated compounds

Hydrogen fluoride
Material Safety Data Sheet 

Genetron® 152a 

Version 2 Revision Date 11/14/2007 Print Date 11/14/2007 

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Carbonyl halides

Carbon oxides

Thermal decomposition : >250 °C

Hazardous reactions : Hazardous polymerisation does not occur.

Stable under normal conditions.

SECTION 11. TOXICOLOGICAL INFORMATION 

Acute oral toxicity : LDLo rat 

Dose: > 1,500 mg/kg 

Acute inhalation toxicity : LC50 rat 

Dose: > 500000 ppm 

Exposure time: 2 h 

Additional advice : Acute Health Hazard 

Cardiac sensitisation threshold (dog): >150000 ppm. 

Vapours are heavier than air and can cause suffocation by 

reducing oxygen available for breathing. 

Rapid evaporation of the liquid may cause frostbite. 

Irritating to eyes and skin. 

Avoid skin contact with leaking liquid (danger of frostbite). 

May cause cardiac arrhythmia. 

Chronic Health Hazard 

Not mutagenic in Ames Test. 

SECTION 12. ECOLOGICAL INFORMATION 

Additional ecological 

information 

: This product contains greenhouse gases which may contribute 

to global warming. Do NOT vent to the atmosphere. To comply 

with provisions of the U.S. Clean Air Act, any residual must be 

recovered. 

SECTION 13. DISPOSAL CONSIDERATIONS 

Waste Information: Avoid contact of spilled material and runoff with soil and surface waterways. 

Consult an environmental professional to determine if local, regional or national regulations would 

classify spilled or contaminated materials as hazardous waste. Use only approved transporters, 

recyclers, treatment, storage or disposal facilities. Dispose of according to all federal, state and local 

applicable regulations. 

Other Disposal Considerations: Observe all Federal, State, and Local Environmental regulations. 
Material Safety Data Sheet 

Genetron® 152a 

Version 2 Revision Date 11/14/2007 Print Date 11/14/2007 

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The information offered here is for the product as shipped. Use and/or alterations to the product such 

as mixing with other materials may significantly change the characteristics of the material and alter the 

RCRA classification and the proper disposal method. 

SECTION 14. TRANSPORT INFORMATION 

DOT Proper shipping name : 1,1-Difluoroethane

UN-Number : 1030 

Class : 2.1

Packing group :

IATA UN Number : 1030 

Description of the goods : 1,1-Difluoroethane 

Class : 2.1 

Hazard Label : 2.1 

Packing instruction (cargo 

aircraft) 

: 200 

IMDG Substance No. : UN 1030 

Description of the goods : 1,1-Difluoroethane 

Class : 2.1 

Hazard Label : 2.1 

EmS Number : F-D 

Marine pollutant : no 

SECTION 15. REGULATORY INFORMATION 

Inventories 

EU. EINECS : On or in compliance with the inventory 

US. Toxic Substances 

Control Act 

: On TSCA Inventory 

Australia. Industrial 

Chemical (Notification and 

Assessment) Act 

: On or in compliance with the inventory 

Canada. Canadian 

Environmental Protection 

Act (CEPA). Domestic 

Substances List (DSL). 

(Can. Gaz. Part II, Vol. 133) 

: All components of this product are on the Canadian DSL list. 

Japan. Kashin-Hou Law List : On or in compliance with the inventory 

Korea. Toxic Chemical 

Control Law (TCCL) List 

: On or in compliance with the inventory 

Philippines. The Toxic 

Substances and Hazardous 

and Nuclear Waste Control 

Act 

: On or in compliance with the inventory 
Material Safety Data Sheet 

Genetron® 152a 

Version 2 Revision Date 11/14/2007 Print Date 11/14/2007 

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China. Inventory of Existing 

Chemical Substances 

: On or in compliance with the inventory 

New Zealand. Interim 

Inventory of Chemicals (as 

published by ERMA new 

Zealand) 

: On or in compliance with the inventory 

National regulatory information 

SARA 311/312 Hazards : Fire Hazard 

Acute Health Hazard 

Sudden Release of Pressure Hazard 

California Prop. 65 : This product does not contain any chemicals known to State of 

California to cause cancer, birth, or any other reproductive 

defects. 

Massachusetts RTK : 1,1-Difluoroethane 75-37-6 

New Jersey RTK : 1,1-Difluoroethane 75-37-6 

Pennsylvania RTK : 1,1-Difluoroethane 75-37-6 

WHMIS Classification : A

B1

Global warming potential : 120 

Ozone depletion potential 

(ODP) 

: 0 

SECTION 16. OTHER INFORMATION 

HMIS III NFPA

Health Hazard : 1 2 

Flammability : 4 4 

Physical Hazard : 0 

Instability : 0