*** CHEMICAL IDENTIFICATION *** RTECS NUMBER : TB9279500 CHEMICAL NAME : Phosphoric acid, cobalt(2+) salt (2:3), octahydrate CAS REGISTRY NUMBER : 10294-50-5 LAST UPDATED : 199207 DATA ITEMS CITED : 2 MOLECULAR FORMULA : O8-P2.3Co.8H2-O MOLECULAR WEIGHT : 805.54 WISWESSER LINE NOTATION : .CO3.P-O4*2 &QH 8 SYNONYMS/TRADE NAMES : * Cobaltous phosphate octahydrate * Cobalt phosphate octahydrate * Cobalt(II) phosphate octahydrate *** 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 : 539 mg/kg TOXIC EFFECTS : Behavioral - somnolence (general depressed activity) Gastrointestinal - hypermotility, diarrhea Nutritional and Gross Metabolic - weight loss or decreased weight gain REFERENCE : FCTOD7 Food and Chemical Toxicology. (Pergamon Press Inc., Maxwell House, Fairview Park, Elmsford, NY 10523) V.20- 1982- Volume(issue)/page/year: 20,311,1982 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH RECOMMENDED EXPOSURE LEVEL (REL) : NIOSH REL TO COBALT METAL, dust and fume-air:10H TWA 0.05 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 *** END OF RECORD ***