1,1-Difluorotetrachloroethane

CAS NO.：76-11-9
Empirical Formula: C2Cl4F2
Molecular Weight: 203.83
MDL number: MFCD00000798
EINECS: 200-934-0
SAFETY DATA SHEET (SDS)
Update Date: 2026-09-12 18:52:58

What is 1,1-Difluorotetrachloroethane?

Chemical properties

colorless crystalline solid

Chemical properties

Colorless liquids or solids with slight ethereal odor.

The Uses of 1,1-Difluorotetrachloroethane

Refrigerant.

General Description

Colorless solid with a slight, ether-like odor. [Mp: 40.6°C; bp: 91.5°C.

Reactivity Profile

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

Hazard

Central nervous system impairment, liver and kidney damage.

Safety Profile

Mildly toxic by inhalation. When heated to decomposition it emits very toxic fumes of Cland F-. Used as a refrigerant. See also FLUORIDES.

Potential Exposure

Used as a refrigerant, corrosion inhibitor; and blowing agent; making plastics. 1,1,2,2-is used as a refrigerant, a solvent extractant; and in the dry cleaning industry.

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.

Properties of 1,1-Difluorotetrachloroethane

Melting point:	39-44 °C
Boiling point:	91-91 °C
Density	1.64
vapor pressure	40 at 20 °C (NIOSH, 1997)
refractive index	1.4046
Flash point:	90-92°C
storage temp.	Refrigerator (+4°C)
solubility	Soluble in alcohol, ether, and chloroform (Weast, 1986)
color	Colorless solid with a faint ether-like odor
Exposure limits	NIOSH REL: TWA 500 ppm (4,170 mg/m³), IDLH 2,000 ppm; OSHA PEL: TWA 500 ppm; ACGIH TLV: TWA 500 ppm (adopted).
NIST Chemistry Reference	1,1,1,2-Tetrachlorodifluoroethane(76-11-9)
EPA Substance Registry System	CFC-112a (76-11-9)