Material Identification:      CAS Number: 75-71-8                     Formula:    CCl2F2/CH3CHF2 (AZEOTROPE) Molecular Weight: 120.9

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

 

 

* 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: 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.  Inhalation may include nonspecific discomfort, such as nausea, headache, or weakness; or temporary nervous system depression with anesthetic effects such as dizziness, headache, confusion, incoordination, and loss of consciousness. Higher exposures (>20%) may lead to temporary lung irritation effects with cough, discomfort, difficulty breathing, or shortness of breath; temporary alteration of the heart's electrical activity with irregular pulse, palpitations, or inadequate circulation; abnormal kidney function as detected by laboratory tests; or fatality from gross overexposure.

SKIN CONTACT:  Overexposure by skin contact with the liquid may include frostbite or mild skin irritation with discomfort.   R-12 has been infrequently associated with skin sensitization in humans.  

EYE CONTACT:  With the liquid or high vapor concentrations may include eye irritation with discomfort, tearing, or blurring of vision.

ADDITIONAL HEALTH EFFECTS: Individuals with preexisting diseases of the central nervous system, cardiovascular system, lungs or kidneys 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.

First Aid Measures

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

SKIN CONTACT:  In case of skin contact, flush with water for 15 minutes.  Treat for frostbite if necessary by gently warming affected areas. Get medical attention if irritation is present.

EYE CONTACT:  In case of eye contact, immediately flush eyes with plenty of water for 15 minutes.  Call a physician.

INGESTION:  Not considered a potential route of exposure.

Notes To Physicians:  Because of possible disturbances of cardiac rhythm, catecholamine drugs, such as epinephrine, should 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: Not determined Autodecomposition Temperature: Dichlorodifluoromethane: <760°C (<1400°F) Difluoroethane: <445°C (<836°F)

FIRE AND EXPLOSION HAZARDS:  Use water spray or fog to cool containers.  Cylinders are equipped with temperature and pressure relief devices but may still rupture under fire conditions.  Decomposition may occur.

EXTINGUISHING MEDIA:  As appropriate for combustibles in area.

FIRE FIGHTING INSTRUCTIONS:  Self-contained breathing apparatus (SCBA) is required if cylinders rupture or release under fire conditions.

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 places where heavy vapors might collect.  Wear self-contained breathing apparatus (SCBA) for large spills.  Remove open flames.

HANDLING (PERSONNEL):  Avoid breathing vapors.  Avoid liquid contact with skin or eyes.  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 places.

PERSONAL PROTECTIVE EQUIPMENT:  Impervious gloves and chemical splash goggles should be used if contact with liquid is possible. Under normal manufacturing conditions no respiratory protection is required when using this product.  Self-contained breathing apparatus (SCBA) is required if a spill occurs.

 

PHYSICAL DATA:

Boiling Point: -33°C (-27°F) Vapor Pressure: 232 psia at 54°C (130°F) Vapor Density: 3.7 (Air = 1) % Volatiles: 100 WT% Evaporation Rate:  (CCl4 = 1) Less than 1 Odor: Slight ethereal Form: Liquified gas Color: Colorless Density: 1.16 g/cc at 25°C (77°F) - Liquid Appearance: Clear

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.
POLYMERIZATION:  Will not occur.
DECOMPOSITION:  Decomposition products are hazardous.  R-500 Refrigerant can be decomposed by high temperatures (open
flames, glowing metal surfaces, etc.) forming hydrochloric and hydrofluoric acids, and possibly carbonyl halides.

 

ANIMAL DATA: R-12
INHALATION:  4-hour LC50:  800,000 ppm in rats Oral ALD: >1000 mg/kg in rats.   Effects from single high exposure include
anesthesia and irregular heartbeat (cardiac arrythmias) due to the heart being made more sensitive to adrenalin (cardiac sensitization).  Repeated high exposures altered respiratory function.  Long-term studies showed no significant clinical,
blood chemistry, or pathological effects following repeated or long term exposures.
EYE:  No significant irritation was seen when a mixture containing R-12 was sprayed onto the eyes of animals.
SKIN: No significant irritation was seen when a mixture containing R-12 was sprayed onto the skin of animails. 
ADDITIONAL INFORMATION: Effects from repeated or 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.
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.
FC-152a
INHALATION 4-hour ALC:  383,000 ppm in rats  Oral ALD: >1500 mg/kg in rats Effects of a single exposure to high levels include

labored breathing, lung irritation, lethargy, ncoordination and loss of consciousness.
EYE:  The compound is untested for eye irritancy, and for animal sensitization.  
SKIN: The compound is untested for skin irritancy, and for animal sensitization.  
ADDITIONAL INFORMATION:  Cardiac sensitization occurred in dogs exposed to a concentration of 150,000 ppm in air and given an intravenous epinephrine challenge.  Effects of repeated exposure include increased urinary fluoride, reduced kidney weight, and reversible kidney changes. Effects of a single high oral dose include weight loss and lethargy.
Tests in animals demonstrate no carcinogenic activity or developmental effects.  Tests in animals for reproductive effects have not
been performed.  This compound does not produce genetic damage in bacterial cell cultures but has not been tested in animals.

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 disposal facility.

SHIPPING INFORMATION:

Proper Shipping Name:    Dichlorodifluoromethane and Difluorethane Azeotropic  Mixture

Hazard Class:  2.2 UN No: 2602 DOT/IMO Label: Non-Flammable Gas Shipping Containers: Cylinders, Ton Tanks.

 

U.S. FEDERAL REGULATIONS:

TSCA Inventory Status:  Reported/Included.

TITLE III HAZARD CLASSIFICATIONS SECTIONS 311, 312 Acute: Yes Chronic: No Fire:  No Reactivity:  No Pressure:  Yes

HAZARDOUS CHEMICAL LISTS

Extremely Hazardous Substance:  No CERCLA Hazardous Substance:   (Yes)* Toxic Chemicals: (Yes)*

 

 

Personal Protection rating to be supplied by user depending on use conditions.