1,2-DIFLUOROTETRACHLOROETHANE Chemical Properties

Melting point:

24°C

Boiling point:

92,8°C

Density 

1,634 g/cm³

vapor pressure 

45.8 at 25 °C (Boublik et al., 1984)

refractive index 

1.413

solubility 

Soluble in alcohol, chloroform, and ether (Weast, 1986). Miscible in many halogenated hydrocarbons, e.g., chloroform, caterbon tetrachloride, etc.

form 

Colorless solid or liquid

Water Solubility 

120 mg/L at 25 °C (Du Pont, 1966)

Henry's Law Constant

0.102(atm?m³/mol) at 25 °C (approximate - calculated from water solubility and vapor pressure)

Exposure limits

NIOSH REL: TWA 500 ppm (4,170 mg/m³), IDLH 2,000 ppm; OSHA PEL: TWA 500 ppm (adopted).

CAS DataBase Reference

76-12-0(CAS DataBase Reference)

EPA Substance Registry System

CFC-112 (76-12-0)

Safety Information

Hazard Codes 

Xi

Risk Statements 

36/37/38

Safety Statements 

26-36

OEB

A

OEL

TWA: 500 ppm (4170 mg/m3)

Hazard Note 

Irritant

Hazardous Substances Data

76-12-0(Hazardous Substances Data)

Toxicity

LD50 (inhalation) for mice 123 gm/m³/2-h (quoted, RTECS, 1985).

IDLA

2,000 ppm

1,2-DIFLUOROTETRACHLOROETHANE Usage And Synthesis

Chemical Properties

White solid or colorless liquid; slightly camphor-like odor when concentrated. Insoluble in water; soluble in alcohol. Nonflammable.

Chemical Properties

Colorless liquids or solids with slight ethereal odor.

Physical properties

Clear, colorless liquid or solid with a faint, ethereal or camphor-like odor. Evaporates quickly when spilled.

Uses

Degreasing solvent.

Uses

As a refrigerant; solvent extractant; as a blowing or foaming agent.

General Description

Colorless low-melting solid or liquid with a slight ethereal odor. Mp: 26.5°C; bp: 92.5°C. Density (of liquid): 1.64 g cm-3 at 30°C. Used as a refrigerant, a solvent extractant, and in dry cleaning.

Reactivity Profile

1,2-DIFLUOROTETRACHLOROETHANE is non-flammable. Incompatible with active metals such as potassium, sodium, beryllium, powdered aluminum, zinc, magnesium, and calcium. Reacts with acids.

Hazard

Toxic by inhalation.

Health Hazard

At high concentrations, 1,1,2,2- tetrachloro-1,2-difluoroethane affects the nervous system and causes pulmonary edema in animals; it is expected that severe exposure in humans will produce the same effects. There are no reports of adverse effects in humans.

Safety Profile

A poison by inhalation. Moderately toxic by ingestion. A sktn and eye irritant. When heated to decomposition it emits toxic fumes of Fand Cl-. See also CHLORINATED HYDROCARBONS, ALIPHATIC; and FLUORIDES.

Potential Exposure

Possible risk of forming tumors, Primary irritant (w/o allergic reaction).

Shipping

UN1078 Refrigerant gases, n.o.s., Hazard Class: 2.2; Labels: 2.2-Nonflammable compressed gas, Technical Name Required

Incompatibilities

Acids and chemically active metals, such as potassium, beryllium, powdered aluminum; zinc, calcium, magnesium, and sodium.

1,2-DIFLUOROTETRACHLOROETHANE(76-12-0)Related Product Information

• Difluoroethane
• 1,2-DIFLUOROETHANE
• 1,1-DIFLUOROTETRACHLOROETHANE,2,2-DIFLUOROTETRACHLOROETHANE,1,1-DIFLUORO-1,2,2,2 TETRACHLOROETHANE,2,2-Difluoro-1,1,1,2-tetrachloroethane
• Dichlorofluoroethane
• 1-CHLORO-1,2-DIFLUOROETHANE
• Dichloromonofluoromethane
• 1-FLUORO-1,1,2-TRICHLOROETHANE
• 1-FLUORO-1,1,2,2-TETRACHLOROETHANE
• 1-FLUORO-1,2,2-TRICHLOROETHANE
• 1,1-DICHLORO-1,2-DIFLUOROETHANE
• 1,2-DIFLUOROTETRACHLOROETHANE
• 1,2-DIFLUORO-1,1,2-TRICHLOROETHANE
• 1,1,2,2-Tetrachloroethane
• 1,1,2-TRICHLOROETHANE (1,2,2-D3)
• 1,2-DICHLORO-1,2-DIFLUOROETHANE
• 1,2-DICHLOROFLUOROETHANE
• 1,1-Difluorotetrachloroethane (FC-112a)