*** CHEMICAL IDENTIFICATION *** RTECS NUMBER : WC4600000 CHEMICAL NAME : Sodium monohydrogen phosphate heptahydrate (2:1:1:7) CAS REGISTRY NUMBER : 7782-85-6 LAST UPDATED : 199603 DATA ITEMS CITED : 2 MOLECULAR FORMULA : H-O4-P.2Na.7H2-O MOLECULAR WEIGHT : 383.05 WISWESSER LINE NOTATION : .NA2.P-O3-Q QH7 SYNONYMS/TRADE NAMES : * Disodium phosphate heptahydrate * Phosphoric acid, disodium salt, heptahydrate * Sodium phosphate, diabasic, heptahydrate *** 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 : 12930 mg/kg TOXIC EFFECTS : Details of toxic effects not reported other than lethal dose value REFERENCE : AIHAAP American Industrial Hygiene Association Journal. (AIHA, 475 Wolf Ledges Pkwy., Akron, OH 44311) V.19- 1958- Volume(issue)/page/year: 30,470,1969 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - X4887 No. of Facilities: 219 (estimated) No. of Industries: 3 No. of Occupations: 13 No. of Employees: 2878 (estimated) No. of Female Employees: 2288 (estimated) *** END OF RECORD ***