CAS No.76-12-0,1,1,2,2-Tetrach lorodifluoroethane Suppliers

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Basic Information

Molecular Structure:
CAS No.:	76-12-0
Name:	1,1,2,2-Tetrach lorodifluoroethane
Article Data:	59

Formula:	C2Cl4 F2
Molecular Weight:	203.831
Synonyms:	1,1,2,2-Tetrachloro-1,2-difluoroethane;1,1,2,2-Tetrachlorodifluoroethane; 1,2-Difluoro-1,1,2,2-tetrachloroethane;1,2-Difluorotetrachloroethane; CFC 112; CFC 122; Daiflon 112; Daiflon S 2; F112; FC 112; Freon 112; Fron 112; Genetron 112; R 112;Tetrachloro-1,2-difluoroethane; Ucon 112; sym-Tetrachlorodifluoroethane
Density:	1,634 g/cm3
Melting Point:	24°C
Boiling Point:	92,8°C
Flash Point:	12.3°C
Hazard Symbols:	Toxic by inhalation. TLV: 500 ppm.
Risk Codes:	R36/37/38
Safety:	A poison by inhalation. Moderately toxic by ingestion. A skin and eye irritant. When heated to decomposition it emits toxic fumes of F⁻ and Cl⁻. See also CHLORINATED HYDROCARBONS, ALIPHATIC; and FLUORIDES.
Analytical Methods:		For occupational chemical analysis use NIOSH: see 1,1,2,2-TETRACHLORO-1,2-DIFLUOROETHANE.
PSA:	0.00000
LogP:	3.18820

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Chemistry

IUPAC Name: 1,1,2,2-Tetrachloro-1,2-difluoroethane
The MF of 1,2-Difluorotetrachloroethane (CAS NO.76-12-0) is C₂Cl₄F₂.

The MW of 1,2-Difluorotetrachloroethane (CAS NO.76-12-0) is 203.83.
Synonyms of 1,2-Difluorotetrachloroethane (CAS NO.76-12-0): Tetrachloro-1,2-difluoroethane ; 1,1,2,2-Tetrachloro-1,2-difluoroethane ; Ethane, 1,1,2,2-tetrachloro-1,2-difluoro- ; 1,2-Difluoro-1,1,2,2-tetrachloroethane ; 2-Difluoro-1
Product Categories: Industrial/Fine Chemicals;CFC;refrigerants
Apperance: Colorless low-melting solid or liquid with a slight ethereal odor
Index of Refraction: 1.437
EINECS: 200-935-6
Density: 1.726 g/ml
Flash Point: 12.3 °C
Boiling Point: 94.1 °C
Melting Point: 26.5 °C

Uses

1,2-Difluorotetrachloroethane (CAS NO.76-12-0) is used as a refrigerant, a solvent extractant, and in dry cleaning.Also used to produce cattle liver fluke treatment of insect repellent. With Freon 112 as raw material obtained methoxy halothane,it is a new type of inhalation anesthetic agents.

Production

Hexachloroethane react with hydrogen fluoride in the presence of antimony pentachloride catalyst.Trifluoro-trichloroethane are formed by alkaline cleaning, washing, fractionation, purification with Freon 112 as a byproduct.

Toxicity Data With Reference

1.	skn-gpg 100%/24H open MLD	AIHAAP American Industrial Hygiene Association Journal. 27 (1966),332.
2.	eye-gpg 100 mg/20S rns MLD	AIHAAP American Industrial Hygiene Association Journal. 27 (1966),332.
3.	ihl-rat LC50:2 pph/15M	HUTODJ Human Toxicology. 1 (1982),239.
4.	orl-mus LD50:800 mg/kg	85GMAT Toxicometric Parameters of Industrial Toxic Chemicals Under Single Exposure Izmerov, N.F., et al.,Moscow, USSR.: Centre of International Projects, GKNT,1982,54.

Consensus Reports

Reported in EPA TSCA Inventory.

Safety Profile

A poison by inhalation. Moderately toxic by ingestion. A skin and eye irritant. When heated to decomposition it emits toxic fumes of F⁻ and Cl⁻. See also CHLORINATED HYDROCARBONS, ALIPHATIC; and FLUORIDES.Safety information of 1,2-Difluorotetrachloroethane (CAS NO.76-12-0):
Hazard Codes Xi
Risk Statements
36/37/38 Irritating to eyes, respiratory system and skin
Safety Statements
26 In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
36 Wear suitable protective clothing
Hazard Note Irritant

Standards and Recommendations

OSHA PEL: TWA 500 ppm
ACGIH TLV: TWA 500 ppm
DFG MAK: 200 ppm (1700 mg/m³)
NIOSH REL: (1,1,2,2-Tetrachloro-1,2-difluoroethane) TWA 500 ppm

Analytical Methods

For occupational chemical analysis use NIOSH: see 1,1,2,2-TETRACHLORO-1,2-DIFLUOROETHANE.