Material Identification                 CAS Number: 75-71-8 Formula: CCl2F2 Molecular Weight: 120.92

Trade names and Synonyms:  CFC-12, Dichlorodifluoromethane

Company: BEST INC., LIMITED.

Add.: Rooms 1318-20, 13/F Hollywood Plaza, 610 Nathan Road, Mongkok, Kowloon, Hong Kong

Tel: +852-30774337       Fax:+852-30774338

 

 

Components:             Material METHANE, DICHLORODIFLUORO-(R-12) CAS Number, % 75-71-8 100%

Disclosure as a toxic chemical is required under Section 313 of Title III of the Superfund Amendments and Reauthorization Act of 1986 and 40 CFR part 372.

 

INHALATION:  R-12-Vapors may cause temporary nervous system depression with anesthetic effects such as dizziness, headache,
confusion, in coordination, and loss of consciousness; temporary alteration of the heart's electrical activity with irregular pulse,
palpitations, or inadequate circulation, or the effects of exclusion of oxygen with grossly excessive exposures.

EYE CONTACT:  R-12-Overexposure by eye contact with the vapor may include eye irritation with discomfort, tearing, or blurring of
vision.

SKIN CONTACT: R-12- May cause frostbite.  
High concentrations of vapor are 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.  May cause eye irritation.

ADDITIONAL HEALTH EFFECTS:  R-12-Individuals with preexisting diseases of the central nervous or cardiovascular system may
have increased susceptibility to the toxicity of excessive exposures.

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.

 

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, flush skin with water. 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 a possible disturbance of cardiac rhythm, catecholamine drugs, such as epinephrine, should only be used with special caution in situations of emergency life support.

FLAMMABLE PROPERTIES: Flash Point: Will not burn

Flammable limits in Air, % by Volume LEL:  Not applicable UEL: Not applicable Autoignition: >750°C (>1382°F)

FIRE AND EXPLOSION HAZARDS:  Cylinders may rupture under fire conditions.  Decomposition may occur.

EXTINGUISHING MEDIA:  As appropriate for combustibles in area.

FIRE FIGHTING INSTRUCTIONS:  Use water spray or fog to cool containers.  Self-contained breathing apparatus (SCBA) is required if cylinders rupture and contents are released under fire conditions.  Water runoff should be contained and neutralized  prior to release.

SAFEGUARDS (PERSONNEL): NOTE: Review FIRE FIGHTING MEASURES and HANDLING (PERSONNEL) sections before proceeding with clean-up.  Use appropriate

PERSONAL PROTECTIVE EQUIPMENT:  During clean-up.

ACCIDENTAL RELEASE MEASURES:  Ventilate area, especially low or enclosed places where heavy vapors might collect.  Remove open flames.  Use self-contained breathing apparatus (SCBA) for large spills.

HANDLING (PERSONNEL):  Use with sufficient ventilation to keep employee exposure below recommended limits. STORAGE:  Clean, dry area.  Do not heat above 52°C (125°F).

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.

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.

PHYSICAL DATA:

Boiling Point: -29.8°C (-21.6°F)
Vapor Pressure: 94.5 psia at 25°C (77°F)
Vapor Density: 4.26 (Air = 1.0) at 25°C (77°F)
% Volatiles: 100 WT%
Solubility in Water:  0.028 WT% @ 25°C (77°F)) at 1 atm
PH: Neutral Odor: Slight ethereal Form: Liquified gas Color: Clear, colorless Density: 1.315 g/cc at 25°C (77°F) - Liquid

CHEMICAL STABILITY:  Material is stable.  However, avoid open flames and high temperatures.
CONDITIONS TO AVOID:  Incompatible with alkali or alkaline earth metals- powdered Al, Zn, Be, etc.
DECOMPOSITION:  Decomposition products are hazardous.  R-12 can be decomposed by high temperatures (open flames, glowing metal surfaces, etc.) forming hydrochloric and hydrofluoric acids, and possibly carbonyl halides. These materials are toxic and irritating. Contact should be avoided.
POLYMERIZATION:  Polymerization will not occur.

ANIMAL DATA: R-12

INHALATION:  30-minute LC50:  800,000 ppm in rats  Oral ALD:  >1,000 mg/kg in rats Effects in animals from single high exposure by inhalation include anesthesia and irregular heartbeat (cardiac arrythmias).  Repeated inhalation exposures produced altered respiratory function.  Long-term studies showed no significant clinical, blood chemistry or pathological effects following repeated exposures. The effects in animals from long-term ingestion of this material include slight alterations in blood chemistry and body weight gain.  No other clinical, biochemical or pathological signs of toxicity have been observed.

CARCINOGENCITY INFORMATION:  Tests in animals demonstrate no carcinogenic activity and no developmental or reproductive toxicity. The compound does not produce heritable genetic damage in animals or genetic damage in bacterial and mammalian cell cultures.

ECOTOXICOLOGICAL INFORMATION AQUATIC TOXICITY:  R-12:  48 hour EC50 - Daphnia magna:  95 mg/L.

WASTE DISPOSAL:  Comply with Federal, State, and local regulations.  Reclaim by distillation or remove to a permitted waste facility.