毒理学数据:
1.急性毒性
LC50:499000ppm(大鼠吸入,4h);>800000mg/m3(小鼠吸入,2h)
2.刺激性 暂无资料
3.亚急性与慢性毒性 大鼠在0.5mg/L或1.5mg/L浓度下全天吸入,40d后可见鼻黏膜上皮破坏及刺激,同时伴有上皮化生。
生态学数据:
1.生态毒性 暂无资料
2.生物降解性 暂无资料
3.非生物降解性 空气中,当羟基自由基浓度为5.00×105个/cm3时,降解半衰期为1.5a(理论)。
4.其他有害作用 该物质臭氧消耗潜能(ODP)为0.04,可对大气臭氧层造成破坏。
CHEMICAL IDENTIFICATION
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RTECS NUMBER :
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PA8400000
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CHEMICAL NAME :
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Methane, dichlorofluoro-
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CAS REGISTRY NUMBER :
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75-43-4
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BEILSTEIN REFERENCE NO. :
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1731041
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LAST UPDATED :
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199712
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DATA ITEMS CITED :
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40
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MOLECULAR FORMULA :
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C-H-Cl2-F
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MOLECULAR WEIGHT :
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102.92
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WISWESSER LINE NOTATION :
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GYGF
HEALTH HAZARD DATA
ACUTE TOXICITY DATA
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TYPE OF TEST :
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LC50 - Lethal concentration, 50 percent kill
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ROUTE OF EXPOSURE :
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Inhalation
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SPECIES OBSERVED :
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Rodent - rat
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DOSE/DURATION :
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49900 ppm/4H
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TOXIC EFFECTS :
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Details of toxic effects not reported other than lethal dose value
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REFERENCE :
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85INA8 "Documentation of the Threshold Limit Values and Biological Exposure Indices," 5th ed., Cincinnati, OH, American Conference of Governmental Industrial Hygienists, Inc., 1986 Volume(issue)/page/year: 5,187,1986
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TYPE OF TEST :
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LC50 - Lethal concentration, 50 percent kill
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ROUTE OF EXPOSURE :
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Inhalation
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SPECIES OBSERVED :
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Rodent - mouse
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DOSE/DURATION :
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>800 gm/m3/2H
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TOXIC EFFECTS :
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Behavioral - tremor Behavioral - ataxia Lungs, Thorax, or Respiration - other changes
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REFERENCE :
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GTPZAB Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1-36, 1957-1992. For publisher information, see MTPEEI Volume(issue)/page/year: 20(11),38,1976
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TYPE OF TEST :
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LCLo - Lowest published lethal concentration
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ROUTE OF EXPOSURE :
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Inhalation
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SPECIES OBSERVED :
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Rodent - guinea pig
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DOSE/DURATION :
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10 pph/1H
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TOXIC EFFECTS :
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Details of toxic effects not reported other than lethal dose value
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REFERENCE :
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FLCRAP Fluorine Chemistry Reviews. (Marcel Dekker, 270 Madison Ave., New York, NY 10016) V.1- 1967- Volume(issue)/page/year: 1,197,1967 ** OTHER MULTIPLE DOSE TOXICITY DATA **
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TYPE OF TEST :
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TCLo - Lowest published toxic concentration
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ROUTE OF EXPOSURE :
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Inhalation
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SPECIES OBSERVED :
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Rodent - rat
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DOSE/DURATION :
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1 pph/6H/2W-I
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TOXIC EFFECTS :
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Liver - other changes
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REFERENCE :
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TXAPA9 Toxicology and Applied Pharmacology. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.1- 1959- Volume(issue)/page/year: 41(1),199,1977
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TYPE OF TEST :
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TCLo - Lowest published toxic concentration
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ROUTE OF EXPOSURE :
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Inhalation
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SPECIES OBSERVED :
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Rodent - rat
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DOSE/DURATION :
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1000 ppm/6H/90D-I
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TOXIC EFFECTS :
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Skin and Appendages - hair Related to Chronic Data - death
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REFERENCE :
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TXAPA9 Toxicology and Applied Pharmacology. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.1- 1959- Volume(issue)/page/year: 41(1),200,1977
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TYPE OF TEST :
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TCLo - Lowest published toxic concentration
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ROUTE OF EXPOSURE :
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Inhalation
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SPECIES OBSERVED :
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Mammal - dog
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DOSE/DURATION :
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1 pph/3.5H/4W-I
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TOXIC EFFECTS :
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Liver - hepatitis (hepatocellular necrosis), zonal Liver - fatty liver degeneration
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REFERENCE :
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ZAARAM Zentralblatt fuer Arbeitsmedizin und Arbeitsschutz. (Darmstadt, Fed. Rep. Ger.) V.1-25, 1951-75. Volume(issue)/page/year: 21,149,1971
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TYPE OF TEST :
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TCLo - Lowest published toxic concentration
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ROUTE OF EXPOSURE :
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Inhalation
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SPECIES OBSERVED :
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Mammal - dog
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DOSE/DURATION :
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5000 ppm/6H/13W-I
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TOXIC EFFECTS :
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Liver - changes in liver weight Nutritional and Gross Metabolic - weight loss or decreased weight gain
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REFERENCE :
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NTIS** National Technical Information Service. (Springfield, VA 22161) Formerly U.S. Clearinghouse for Scientific & Technical Information. Volume(issue)/page/year: OTS0520832
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TYPE OF TEST :
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TCLo - Lowest published toxic concentration
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ROUTE OF EXPOSURE :
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Inhalation
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SPECIES OBSERVED :
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Mammal - cat
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DOSE/DURATION :
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1 pph/3.5H/4W-I
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TOXIC EFFECTS :
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Liver - hepatitis (hepatocellular necrosis), zonal Liver - fatty liver degeneration
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REFERENCE :
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ZAARAM Zentralblatt fuer Arbeitsmedizin und Arbeitsschutz. (Darmstadt, Fed. Rep. Ger.) V.1-25, 1951-75. Volume(issue)/page/year: 21,149,1971
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TYPE OF TEST :
-
TCLo - Lowest published toxic concentration
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ROUTE OF EXPOSURE :
-
Inhalation
-
SPECIES OBSERVED :
-
Rodent - guinea pig
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DOSE/DURATION :
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1 pph/3.5H/4W-I
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TOXIC EFFECTS :
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Liver - hepatitis (hepatocellular necrosis), zonal Liver - fatty liver degeneration Nutritional and Gross Metabolic - weight loss or decreased weight gain
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REFERENCE :
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ZAARAM Zentralblatt fuer Arbeitsmedizin und Arbeitsschutz. (Darmstadt, Fed. Rep. Ger.) V.1-25, 1951-75. Volume(issue)/page/year: 21,149,1971 ** REPRODUCTIVE DATA **
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TYPE OF TEST :
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TCLo - Lowest published toxic concentration
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ROUTE OF EXPOSURE :
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Inhalation
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DOSE :
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1 pph/6H
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SEX/DURATION :
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female 6-15 day(s) after conception
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REFERENCE :
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TXAPA9 Toxicology and Applied Pharmacology. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.1- 1959- Volume(issue)/page/year: 45,293,1978 *** REVIEWS *** ACGIH TLV-TWA 42 mg/m3 (10 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 TOXICOLOGY REVIEW FAZMAE Fortschritte der Arzneimittelforschung. Progress in Drug Research. (Birkhauser Boston, Inc., c/o Springer-Verlag New York, 44 Hartz Way, Secaucus, NJ 07094) V.1- 1959- Volume(issue)/page/year: 18,365,1974 *** U.S. STANDARDS AND REGULATIONS *** MSHA STANDARD-air:TWA 1000 ppm (4200 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: 3,81,1971 OSHA PEL (Gen Indu):8H TWA 1000 ppm (4200 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 1000 ppm (4200 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 1000 ppm (4200 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 1000 ppm (4200 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 10 ppm (40 mg/m3) JAN 1993 OEL-AUSTRIA:TWA 10 ppm (45 mg/m3) JAN 1993 OEL-BELGIUM:TWA 10 ppm (42 mg/m3) JAN 1993 OEL-DENMARK:TWA 10 ppm (40 mg/m3) JAN 1993 OEL-FINLAND:TWA 10 ppm (40 mg/m3);STEL 20 ppm (80 mg/m3) JAN 1993 OEL-FRANCE:TWA 10 ppm (40 mg/m3) JAN 1993 OEL-GERMANY:TWA 10 ppm (45 mg/m3) JAN 1993 OEL-HUNGARY:STEL 40 mg/m3 JAN 1993 OEL-THE NETHERLANDS:TWA 10 ppm (42 mg/m3) JAN 1993 OEL-THE PHILIPPINES:TWA 1000 ppm (4200 mg/m3) JAN 1993 OEL-POLAND:TWA 2000 mg/m3 JAN 1993 OEL-SWITZERLAND:TWA 10 ppm (40 mg/m3);STEL 20 ppm (80 mg/m3) JAN 1993 OEL-TURKEY:TWA 1000 ppm (4200 mg/m3) JAN 1993 OEL-UNITED KINGDOM:TWA 10 ppm (40 mg/m3) 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 DICHLOROMONOFLUOROMETHANE-air:10H TWA 10 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 NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - 24235 No. of Facilities: 4131 (estimated) No. of Industries: 44 No. of Occupations: 56 No. of Employees: 43521 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 24235 No. of Facilities: 935 (estimated) No. of Industries: 8 No. of Occupations: 13 No. of Employees: 12182 (estimated) No. of Female Employees: 1640 (estimated)
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