*** CHEMICAL IDENTIFICATION *** RTECS NUMBER : NO7130000 CHEMICAL NAME : Iron(II) nitrate hexahydrate (1:2:6) CAS REGISTRY NUMBER : 13520-68-8 LAST UPDATED : 199701 DATA ITEMS CITED : 6 MOLECULAR FORMULA : N2-O6.Fe.6H2-O MOLECULAR WEIGHT : 287.99 WISWESSER LINE NOTATION : FE N-O3*2 &QH 6 SYNONYMS/TRADE NAMES : * Ferrous nitrate, hexahydrate * Nitric acid, iron(2+) salt hexahydrate *** U.S. STANDARDS AND REGULATIONS *** MSHA STANDARD-air:TWA 1 mg(Fe)/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: 3,138,1971 *** OCCUPATIONAL EXPOSURE LIMITS *** OEL-DENMARK:TWA 1 mg(Fe)/m3 JAN 1993 OEL-FINLAND:TWA 1 mg(Fe)/m3 JAN 1993 OEL-THE NETHERLANDS:TWA 1 mg(Fe)/m3 JAN 1993 OEL-SWITZERLAND:TWA 1 mg(Fe)/m3 JAN 1993 OEL-UNITED KINGDOM:TWA 1 mg(Fe)/m3;STEL 2 mg(Fe)/m3 JAN 1993 *** END OF RECORD ***