CHEMICAL IDENTIFICATION
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RTECS NUMBER :
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UX8225000
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CHEMICAL NAME :
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Pyrosulfurous acid, disodium salt
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CAS REGISTRY NUMBER :
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7681-57-4
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LAST UPDATED :
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199712
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DATA ITEMS CITED :
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30
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MOLECULAR FORMULA :
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O5-S2.2Na
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MOLECULAR WEIGHT :
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190.10
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WISWESSER LINE NOTATION :
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NA2 S2-O3-Q2
HEALTH HAZARD DATA
ACUTE TOXICITY DATA
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TYPE OF TEST :
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LD50 - Lethal dose, 50 percent kill
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ROUTE OF EXPOSURE :
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Intravenous
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SPECIES OBSERVED :
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Rodent - rat
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DOSE/DURATION :
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115 mg/kg
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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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TYPE OF TEST :
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LD50 - Lethal dose, 50 percent kill
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ROUTE OF EXPOSURE :
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Parenteral
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SPECIES OBSERVED :
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Rodent - mouse
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DOSE/DURATION :
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910 mg/kg
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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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TYPE OF TEST :
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LDLo - Lowest published lethal dose
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ROUTE OF EXPOSURE :
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Intravenous
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SPECIES OBSERVED :
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Rodent - rabbit
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DOSE/DURATION :
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192 mg/kg
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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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TYPE OF TEST :
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TDLo - Lowest published toxic dose
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ROUTE OF EXPOSURE :
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Oral
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SPECIES OBSERVED :
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Rodent - rat
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DOSE/DURATION :
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75 mg/kg/15D-C
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TOXIC EFFECTS :
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Kidney, Ureter, Bladder - other changes Biochemical - Enzyme inhibition, induction, or change in blood or tissue levels - phosphatases Biochemical - Enzyme inhibition, induction, or change in blood or tissue levels - dehydrogenases
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TYPE OF TEST :
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TDLo - Lowest published toxic dose
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ROUTE OF EXPOSURE :
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Oral
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SPECIES OBSERVED :
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Mammal - pig
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DOSE/DURATION :
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562 gm/kg/48W-C
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TOXIC EFFECTS :
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Liver - changes in liver weight Kidney, Ureter, Bladder - changes in bladder weight Nutritional and Gross Metabolic - weight loss or decreased weight gain
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TYPE OF TEST :
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TDLo - Lowest published toxic dose
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ROUTE OF EXPOSURE :
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Oral
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DOSE :
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20 gm/kg
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SEX/DURATION :
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multigenerations
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TOXIC EFFECTS :
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Reproductive - Effects on Newborn - stillbirth
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TYPE OF TEST :
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TDLo - Lowest published toxic dose
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ROUTE OF EXPOSURE :
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Oral
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DOSE :
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40 gm/kg
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SEX/DURATION :
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multigenerations
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TOXIC EFFECTS :
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Reproductive - Effects on Newborn - weaning or lactation index (e.g., # alive at weaning per # alive at day 4)
MUTATION DATA
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TYPE OF TEST :
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Sister chromatid exchange
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TEST SYSTEM :
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Rodent - hamster Ovary
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REFERENCE :
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ENMUDM Environmental Mutagenesis. (New York, NY) V.1-9, 1979-87. For publisher information, see EMMUEG. Volume(issue)/page/year: 7,1,1985 *** REVIEWS *** ACGIH TLV-Not classifiable as a human carcinogen 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 ACGIH TLV-TWA 5 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: TLV/BEI,1997 IARC Cancer Review:Human Inadequate Evidence IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man. (WHO Publications Centre USA, 49 Sheridan Ave., Albany, NY 12210) V.1- 1972- Volume(issue)/page/year: 54,131,1992 IARC Cancer Review:Animal Inadequate Evidence IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man. (WHO Publications Centre USA, 49 Sheridan Ave., Albany, NY 12210) V.1- 1972- Volume(issue)/page/year: 54,131,1992 IARC Cancer Review:Group 3 IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man. (WHO Publications Centre USA, 49 Sheridan Ave., Albany, NY 12210) V.1- 1972- Volume(issue)/page/year: 54,131,1992 *** OCCUPATIONAL EXPOSURE LIMITS *** OEL-AUSTRALIA:TWA 5 mg/m3 JAN 1993 OEL-BELGIUM:TWA 5 mg/m3 JAN 1993 OEL-DENMARK:TWA 5 mg/m3 JAN 1993 OEL-FRANCE:TWA 5 mg/m3 JAN 1993 OEL-THE NETHERLANDS:TWA 5 mg/m3 JAN 1993 OEL-SWITZERLAND:TWA 5 mg/m3 JAN 1993 OEL-UNITED KINGDOM:TWA 5 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 SODIUM METABISULFITE-air:10H TWA 5 mg/m3 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 : NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - X4004 No. of Facilities: 8367 (estimated) No. of Industries: 73 No. of Occupations: 68 No. of Employees: 88236 (estimated) No. of Female Employees: 28696 (estimated)
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