R134A

PRODUCT INFORMATION

Product Identification Refex R134a
Chemical Family Hydrofluorocarbons
Chemical Formula CH2FCF3
Chemical Name 1,1,1,2-tetrafluoroethane
Company Identification Refex Industries Limited, #1,117 Old Mahabalipuram Road, Thiruporur, Kanchipuram 603 110 Tamilnadu, India.
Phone number +91-44-27445295/ 27445296, +91- 9884397803
Email admin@refex.co.in

COMPOSITION / INFORMATION ON INGREDIENTS

Components 100% 1,1,1,2-tetrafluoroethane
CAS No. 811-97-2
UN No. 3159

PHYSICAL AND CHEMICAL PROPERTIES

Physical Data

Boiling Point -26.5 C (-15.7 F) @ 736 mm Hg
Vapor Pressure 96 psia @ 25 C (77 F)
Vapor Density 3.6 (Air=1.0) @ 25 C (77 F)
% Volatiles 100 WT%
Solubility in Water 0.15 WT% @ 25 C (77 F)@ 14.7 psia
Odor Ether (slight)
Form Liquified Gas
Color Colorless
Liquid Density 1.21 g/cm3 @ 25 C (77 F)
 Specific Gravity 1.208 @ 77 F (25 C)
 Evaporation Rate  (CCL4 = 1); greater than 1

HEALTH HAZARD/FIRST AID MEASURES

Gross overexposure may cause central nervous system depression with dizziness, confusion, incoordination, drowsiness or unconsciousness. Irregular heart beat with a strange sensation in the chest, “heart thumping”, apprehension, lightheadedness, feeling of fainting, dizziness, weakness, sometimes progressing to loss of consciousness and death. Suffocation, if air is displaced by vapors.

Immediate effects of overexposure may include frostbite, if liquid or escaping vapor contacts the skin. Frostbite-like effects may occur if the liquid or escaping vapors contact the eyes.

Increased susceptibility to the effects of this material may be observed in persons with pre-existing disease of the central nervous system, cardiovascular system.
Carcinogenicity Information

None of the components present in this material at concentrations equal to or greater than 0.1% are listed by IARC, NTP, OSHA or ACGIH as a carcinogen.

First Aid

INHALATION

If high concentrations are inhaled, immediately remove to fresh air. Keep person calm. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Call a physician.

SKIN CONTACT

In case of contact, immediately flush skin with plenty of water for at least 15 minutes, while removing contaminated clothing and shoes. Call a physician. Wash contaminated clothing before use. Treat for frostbite if necessary by gently warming affected area.

EYE CONTACT

In case of contact, immediately flush eyes with plenty of water for at least 15 minutes. Call a physician.

INGESTION

Ingestion is not considered a potential route of exposure.

Notes to Physicians

Because of possible disturbances of cardiac rhythm, catecholamine drugs, such as epinephrine, should only be used with special caution in situations of emergency life support.

FIRE AND EXPLOSION HAZARDS/FIRE FIGHTING MEASURES

FIRE FIGHTING MEASURES

Flammable Properties

Flash Point No flash point

Flammable Limits in Air, % by Volume

LEL 5.6
UEL Not known

FIRE AND EXPLOSION HAZARDS

Cylinders may rupture under fire conditions. Decomposition may occur. Contact of welding or soldering torch flame with high concentrations of refrigerant can result in visible changes in the size and color of torch flames. This flame effect will only occur in concentrations of product well above the recommended exposure limit, therefore stop all work and ventilate to disperse refrigerant vapors from the work area before using any open flames. HFC-134a is not flammable in air at temperatures up to 100 deg. C (212 deg. F) at atmospheric pressure. However, mixtures of HFC-134a with high concentrations of air at elevated pressure and/or temperature can become combustible in the presence of an ignition source. HFC-134a can also become combustible in an oxygen enriched environment (oxygen concentrations greater than that in air). Whether a mixture containing HFC-134a and air, or HFC-134a in an oxygen enriched atmosphere become combustible depends on the inter-relationship of 1) the temperature 2) the pressure, and 3) the proportion of oxygen in the mixture. In general, HFC-134a should not be allowed to exist with air above atmospheric pressure or at high temperatures; or in an oxygen enriched environment. For example HFC-134a should NOT be mixed with air under pressure for leak testing or other purposes.

Experimental data have also been reported which indicate combustibility of HFC-134a in the presence of certain concentrations of chlorine.

Extinguishing Media
Use media appropriate for surrounding material.

Fire Fighiting Instruction

Cool tank/container with water spray. Self-contained breathing apparatus (SCBA) may be required if cylinders rupture or release under fire conditions. Water runoff should be contained and neutralized prior to release.

ACCIDENTAL RELEASE MEASURES

NOTE: Review FIRE FIGHTING MEASURES and HANDLING (PERSONNEL) sections before proceeding with clean-up. Use appropriate PERSONAL PROTECTIVE EQUIPMENT during clean-up. Ventilate area, especially low or enclosed places where heavy vapors might collect. Remove open flames. Use self-contained breathing apparatus (SCBA) if large spill or leak occurs.

HANDLING, STORAGE, SPILL, EXPOSURE CONTROLS AND DISPOSAL INFORMATION

Use with sufficient ventilation to keep employee exposure below recommended limits. Handling (Physical Aspects) HFC-134a should not be mixed with air for leak testing or used for any other purpose above atmospheric pressure. See Flammable Properties section. Contact with chlorine or other strong oxidizing agents should also be avoided.

Storage

Store in a clean, dry place. Do not heat above 52 C (126 F).

Valve protection caps and valve cutlet threaded plugs must remain in place unless container is secured with valve outlet piped to use point. Do NOT drag, slide or roll cylinders. Use a suitable hand truck for cylinder movement. Never attempt to lift cylinder by its cap. Use a pressure reducing regulator when connecting cylinder to lower pressure (>3000 psig) piping or systems. Do NOT heat cylinder. Use a check valve or trap in the discharge line to prevent hazardous back flow into the cylinder. Cylinders should be stored upright and firmly secured to prevent falling or being knocked over. Separate full containers from empty containers. Storage area temperatures should not exceed 125 deg F (52 deg C) and should be free of combustible materials. Avoid area where salt or other corrosive materials are present. Avoid excessive inventory and storage time. Use a first-in first-out system. Keep accurate inventory records.

Waste Disposal

Contaminated HFC-134a can be recovered by distillation or removed to a permitted waste disposal facility.

EXPOSURE CONTROLS/PERSONAL INFORMATION

Engineering controls

Normal ventilation for standard manufacturing procedures is generally adequate. Local exhaust should be used when large amounts are released. Mechanical ventilation should be used in low or enclosed places. Refrigerant concentration monitors may be necessary to determine vapor concentrations in work areas prior to use of torches or other open flames, or if employees are entering enclosed areas.

Personal protective equipment

Impervious gloves and chemical splash goggles should be used when handling liquid. Under normal manufacturing conditions, no respiratory protection is required when using this product. Self-contained breathing apparatus (SCBA) is required if a large release occurs.

Exposure guidelines

Exposure limits

“REFEX” HFC 134a

PEL (OSHA) None Established
TLV (ACGIH) None Established
AEL * (Refex) 1000 ppm, 8 & 12 Hr. TWA
WEEL (AIHA) 1000 ppm, 8 Hr. TWA

AEL is Refex’s Acceptable Exposure Limit. Where governmentally imposed occupational exposure limits which are lower than the AEL are in effect, such limits shall take precedence.

STABILITY AND REACTIVITY DATA

Chemical Stability – STABLE

Conditions to Avoid – Avoid open flames and high temperatures.

Incompatibility with Other Materials – Incompatible with alkali or alkaline earth metals – powdered Al, Zn, Be, etc.

Decomposition – Decomposition products are hazardous. This material can be decomposed by high temperatures (open flames, glowing metal surfaces, etc.) forming hydrofluoric acid and possibly carbonyl fluoride. These materials are toxic and irritating. Contact should be avoided.

Polymerization – Polymerization will not occur.

TOXICOLOGICAL AND ECOLOGICAL INFORMATION

Animal Data

ETHANE, 1,1,1,2-TETRAFLUOROEYE:
A short duration spray of vapor produced very slight eye irritation.

SKIN

Animal testing indicates this material is a slight skin irritant, but not a skin sensitizer.

INHALATION

4 hour, ALC, rat: 567,000 ppm.

Single exposure caused: Cardiac sensitization, a potentially fatal disturbance of heart rhythm associated with a heightened sensitivity to the action of epinephrine. Lowest-Observed-Adverse-Effect-Level for cardiac sensitization: 75,000 ppm. Single exposure caused: Lethargy. Narcosis. Increased respiratory rates. These effects were temporary.

Single exposure to near lethal doses caused: Pulmonary edema. Repeated exposure caused: Increased adrenals, liver, spleen weight. Decreased uterine, prostate weight. Repeated dosing of higher concentrations caused: the following temporary effects – Tremors. Incoordination.

CARCINOGENIC, DEVELOPMENTAL, REPRODUCTIVE, MUTAGENIC EFFECTS:

In a two-year inhalation study, HFC-134a, at a concentration of 50,000 ppm, produced an increase in late-occurring benign testicular tumors, testicular hyperplasia and testicular weight. The no-effect-level for this study was 10,000 ppm. Animal data show slight fetotoxicity but only at exposure levels producing other toxic effects in the adult animal. Reproductive data on male mice show: No change in reproductive performance. Tests have shown that this material does not cause genetic damage in bacterial or mammalian cell cultures, or in animals. In animal testing, this material has not caused permanent genetic damage in reproductive cells of mammals (has not produced heritable genetic damage).

ECOLOGICAL INFORMATION

Ecotoxicological Information

AQUATIC TOXICITY:
48 hour EC50 – Daphnia magna: 980 mg/L.
96 hour LC50 – Rainbow trout: 450 mg/L

TRANSPORTATION INFORMATION

Shipping Information

Proper Shipping Name : 1,1,1,2-TETRAFLUOROETHANE
Hazard Class : 2.2
UN No. : 3159
DOT/IMO Label : NONFLAMMABLE GAS
Shipping Containers
Tank Cars.
Tank Trucks.
Ton Tanks.
Cylinders.

The data in this Material Safety Data Sheet relates only to the specific material designated herein and does not relate to use in combination with any other material or in any process.

Responsible for MSDS:

Refex Industries Limited
#1,171 Old Mahabalipuram Road,Thiruporur,
Kanchipuram Dt,603 110.
Tamilnadu, India.

Ph : +91-44-27445295/ 27445295
This information is based upon technical information believed to be reliable. It is subject to revision as additional knowledge and experience is gained.