*** CHEMICAL IDENTIFICATION *** RTECS NUMBER : KI1425000 CHEMICAL NAME : Ethane, 2,2-difluoro-1,1,1,2-tetrachloro- CAS REGISTRY NUMBER : 76-11-9 BEILSTEIN REFERENCE NO. : 1699461 REFERENCE : 4-01-00-00146 (Beilstein Handbook Reference) LAST UPDATED : 199712 DATA ITEMS CITED : 26 MOLECULAR FORMULA : C2-Cl4-F2 MOLECULAR WEIGHT : 203.82 WISWESSER LINE NOTATION : GXGGXGFF SYNONYMS/TRADE NAMES : * CFC 112a * 1,1-Difluoroperchloroethane * 1,1-Difluoro-1,2,2,2-tetrachloroethane * F 112a * Halocarbon 112a * R 112a * Refrigerant 112a * 1,1,1,2-Tetrachloro-2,2-difluoroethane *** HEALTH HAZARD DATA *** ** ACUTE TOXICITY DATA ** TYPE OF TEST : LD50 - Lethal dose, 50 percent kill ROUTE OF EXPOSURE : Oral SPECIES OBSERVED : Rodent - rat DOSE/DURATION : >8 gm/kg TOXIC EFFECTS : Details of toxic effects not reported other than lethal dose value REFERENCE : NATUAS Nature. (Nature Subscription Dept., POB 1018, Manasguan, NJ 08736) V.1- 1869- Volume(issue)/page/year: 210,744,1966 TYPE OF TEST : LCLo - Lowest published lethal concentration ROUTE OF EXPOSURE : Inhalation SPECIES OBSERVED : Rodent - rat DOSE/DURATION : 20000 ppm/30M TOXIC EFFECTS : Behavioral - general anesthetic Behavioral - somnolence (general depressed activity) Liver - other changes REFERENCE : TXAPA9 Toxicology and Applied Pharmacology. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.1- 1959- Volume(issue)/page/year: 19,1,1971 *** REVIEWS *** ACGIH TLV-TWA 4170 mg/m3 (500 ppm) DTLVS* The Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) booklet issues by American Conference of Governmental Industrial Hygienists (ACGIH), Cincinnati, OH, 1996 Volume(issue)/page/year: TLV/BEI,1997 *** U.S. STANDARDS AND REGULATIONS *** MSHA STANDARD-air:TWA 500 ppm (4170 mg/m3) DTLVS* The Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) booklet issues by American Conference of Governmental Industrial Hygienists (ACGIH), Cincinnati, OH, 1996 Volume(issue)/page/year: 3,249,1971 OSHA PEL (Gen Indu):8H TWA 500 ppm (4170 mg/m3) CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 29,1910.1000,1994 OSHA PEL (Construc):8H TWA 500 ppm (4170 mg/m3) CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 29,1926.55,1994 OSHA PEL (Shipyard):8H TWA 500 ppm (4170 mg/m3) CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 29,1915.1000,1993 OSHA PEL (Fed Cont):8H TWA 500 ppm (4170 mg/m3) CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 41,50-204.50,1994 *** OCCUPATIONAL EXPOSURE LIMITS *** OEL-AUSTRALIA:TWA 500 ppm (4170 mg/m3) JAN 1993 OEL-BELGIUM:TWA 500 ppm (4170 mg/m3) JAN 1993 OEL-DENMARK:TWA 500 ppm (4170 mg/m3) JAN 1993 OEL-FINLAND:TWA 500 ppm (4170 mg/m3);STEL 625 ppm (5215 mg/m3) JAN 1993 OEL-FRANCE:TWA 500 ppm (4170 mg/m3) JAN 1993 OEL-GERMANY:TWA 1000 ppm (8340 mg/m3) JAN 1993 OEL-THE NETHERLANDS:TWA 500 ppm (4170 mg/m3) JAN 1993 OEL-THE PHILIPPINES:TWA 500 ppm (4170 mg/m3) JAN 1993 OEL-SWITZERLAND:TWA 500 ppm (4200 mg/m3) JAN 1993 OEL-UNITED KINGDOM:TWA 100 ppm (834 mg/m3);STEL 100 ppm JAN 1993 OEL IN BULGARIA, COLOMBIA, JORDAN, KOREA check ACGIH TLV OEL IN NEW ZEALAND, SINGAPORE, VIETNAM check ACGIH TLV *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH RECOMMENDED EXPOSURE LEVEL (REL) : NIOSH REL TO 1,1,1,2-TETRACHLORO-2,2-DIFLUOROETHANE-air:TWA 500 ppm REFERENCE : NIOSH* National Institute for Occupational Safety and Health, U.S. Dept. of Health, Education, and Welfare, Reports and Memoranda. Volume(issue)/page/year: DHHS #92-100,1992 *** STATUS IN U.S. *** EPA TSCA Section 8(b) CHEMICAL INVENTORY EPA TSCA Section 8(d) unpublished health/safety studies EPA TSCA TEST SUBMISSION (TSCATS) DATA BASE, JUNE 1998 NIOSH Analytical Method, 1994: 1,1,1,2-Tetrachloro-2,2-difluoroethane, 1016 NIOSH Analytical Method, 1996: 1,1,2,2-Tetrachloro-1,2-difluoroethane, 1016 *** END OF RECORD ***