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| Boiling Point:: | -43.9 C (-47 F) Average | Vapor Pressure:: | 171.8 Psia At 25 C (77 F) |
|---|---|---|---|
| % Volatiles: | 100 WT% | ||
| High Light: | R141B Refrigerant,HCFC Refrigerant |
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COMPOSITION/INFORMATION ON INGREDIENTS
| COMPONENTS | ||
| Material | CAS Number | Weight % |
| Pentafluoroethane (HFC125) | 354-33-6 | 25% |
| 1,1,1,2-tetrafluoroethane (HFC-134a) | 811-97-2 | 52% |
| Difluoromethane (HFC-32) | 75-10-5 | 23% |
3. HAZARD IDENTIFICATION
Potential Health Effects
Inhalation of high concentrations of vapor is harmful and may cause heart irregularities, unconsciousness or death. Intentional misuse or deliberate inhalation may cause death without warning. Vapor reduces oxygen available for breathing and is heavier than air. Liquid contact can cause frostbite.
HUMAN HEALTH EFFECTS:
Overexposure to the vapors by inhalation may include temporary nervous system depression with anesthetic effects such as dizziness, headache, confusion, incoordination, and loss of consciousness. Higher exposures to the vapors may cause temporary alteration of the heart’s electrical activity with irregular pulse, palpitations, or inadequate circulation. Gross overexposure may be fatal. Skin contact with the liquid may cause frostbite.
Individuals with preexisting diseases of the central nervous or cardiovascular system may have increased susceptibility to the toxicity of increased exposures.
Carcinogenicity Information
one 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.
4. FIRST AID MEASURES
SKIN CONTACT
In case of contact, flush with lukewarm water. Do not use hot water. If frostbite has occurred, call a physician.
EYES CONTACT
In case of liquid contact, immediately flush eyes with plenty of water for 15 minutes. Call a physician.
INHALATION
Immediately remove to fresh air. Keep person calm. Call a physician. If not breathing, give artificial respiration. If breathing is difficult, give oxygen.
INGESTION
Not a probable route. However, in case of accidental ingestion, call a physician.
ADVICE TO PHYSICIAN
THIS MATERIAL MAY MAKE THE HEART MORE SUSCEPTIBLE TO ARRHYTHMIAS. Catecholamines such as adrenaline, and other compounds having similar effects, should be reserved for emergencies and then used only with special caution.
5. FIRE-FIGHTING MEASURES
FLAMMABLE PROPERTIES
FLASH POINT: No flash point
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.
R-407C is not flammable in air at temperatures up to 100 deg C (212 deg F) at atmospheric pressure. However, mixtures of R-407C with high concentrations of air at elevated pressure and/or temperature can become combustible in the presence of an ignition source. R-407C can also become combustible in an oxygen enriched environment (oxygen concentrations greater than that in air). Whether a mixture containing R-407C and air, or R-407C in an oxygen enriched atmosphere becomes combustible depends on the inter-relationship of 1) the temperature 2) the pressure, and 3) the proportion of oxygen in the mixture. In general, R-407C should not be allowed to exist with air above atmospheric pressure or at high temperatures; or in an oxygen enriched environment. For example: R-407C should NOT be mixed with air under pressure for leak testing or other purposes.
