*** CHEMICAL IDENTIFICATION ***

RTECS NUMBER            : FK6657000
CHEMICAL NAME           : Cerium trioxide
CAS REGISTRY NUMBER     : 1345-13-7
LAST UPDATED            : 199701
DATA ITEMS CITED        : 3
MOLECULAR FORMULA       : Ce2-O3
MOLECULAR WEIGHT        : 328.24
SYNONYMS/TRADE NAMES :
   * Cerium(III) oxide
   * Cerium sesquioxide
   * Cerous oxide
   * C.I. 77280
   * Dicerium trioxide
 
                       *** HEALTH HAZARD DATA ***
 
                        ** ACUTE TOXICITY DATA **
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Intraperitoneal
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 475 mg/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   85GMAT "Toxicometric Parameters of Industrial Toxic Chemicals Under Single
   Exposure," Izmerov, N.F., et al., Moscow, Centre of International Projects,
   GKNT, 1982  Volume(issue)/page/year: -,33,1982

         *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA ***

NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA :
   NOES - National Occupational Exposure Survey (1983)
     NOES Hazard Code - X2042
       No. of Facilities: 473 (estimated)
       No. of Industries: 7
       No. of Occupations: 8
       No. of Employees: 19715 (estimated)
       No. of Female Employees: 10325 (estimated)

                          *** STATUS IN U.S. ***
 
   EPA TSCA Section 8(b) CHEMICAL INVENTORY

 
                            *** END OF RECORD ***