*** CHEMICAL IDENTIFICATION *** RTECS NUMBER : CQ8880000 CHEMICAL NAME : Barium, ((ethylenedinitrilo)tetraacetato)cobaltate(III), tetrahydrate CAS REGISTRY NUMBER : 49784-47-6 LAST UPDATED : 199207 DATA ITEMS CITED : 2 MOLECULAR FORMULA : C20-H24-Ba-Co2-N4-C16.4H2-O MOLECULAR WEIGHT : 839.92 *** HEALTH HAZARD DATA *** ** ACUTE TOXICITY DATA ** TYPE OF TEST : LD50 - Lethal dose, 50 percent kill ROUTE OF EXPOSURE : Intravenous SPECIES OBSERVED : Rodent - mouse DOSE/DURATION : 180 mg/kg TOXIC EFFECTS : Details of toxic effects not reported other than lethal dose value REFERENCE : CSLNX* U.S. Army Armament Research & Development Command, Chemical Systems Laboratory, NIOSH Exchange Chemicals. (Aberdeen Proving Ground, MD 21010) Volume(issue)/page/year: NX#04591 *** 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 ***