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Registry of Toxic Effects of Chemical Substances (RTECS)

Chromium(III) nitrate, nonahydrate (1:3:9)

RTECS #

GB6300000

CAS #

7789-02-8

Updated

July 2013

Molecular Weight

400.21

Molecular Formula

N3O9·Cr·9H2O

Synonyms

Chromic nitrate nonahydrate
Chromium nitrate nonahydrate
Chromium trinitrate nonahydrate
Nitric acid, chromium(3+) salt, nonahydrate

Mutation Data and Reference

System TestRoute/Organism/TissueDoseReference
Cytogenetic Analysisovary/hamster50 mg/LCRNGDP 3,1331,1982
DNA inhibitionfibroblast/human1 mmol/LNASGEJ 3,237,1985
DNA repair/Escherichia coli62 µg/wellMUREAV 133,161,1984
micronucleus testlymphocyte/human100 µmol/L/72HMUREAV 649,7,2008
mutation in microorganisms/Salmonella typhimurium13937 µg/plate (+enzymatic activation step)CRNGDP 3,1331,1982
sister chromatid exchangeovary/hamster50 mg/LCRNGDP 3,1331,1982

Acute Toxicity Data and References

Route/OrganismDoseEffectReference
oral/rat lethal dose (50 percent kill): 3250 mg/kgAIHAAP 30,470,1969

Other Multiple Dose Data and References

Route/OrganismDoseEffectReference
inhalation/rabbit lowest published toxic dose: 600 µg/m3/6H/17W- intermittentLung, Thorax, or Respiration: Other changesENVRAL 44,279,1987
intraperitoneal/rat lowest published toxic dose: 431 mg/kg/2W- intermittentLiver: Other changes

Kidney, Ureter, and Bladder: Other changes

Biochemical: Enzyme inhibition, induction, or change in blood or tissue levels: Multiple enzyme effects		INHEAO 23,89,1985

Standards and Regulations

OrganizationStandardReference
Mine Safety and Health Administration (MSHA) STANDARD-airtime-weighted average 1 mg(Cr)/m3DTLVS* 3,35,1971
Occupational Exposure Limit-AUSTRALIAtime-weighted average 0.5 mg(Cr)/m3, JUL2008
Occupational Exposure Limit-BELGIUMtime-weighted average 0.5 mg(Cr)/m3, MAR2002
Occupational Exposure Limit-DENMARKtime-weighted average 0.5 mg(Cr)/m3, MAY2011
Occupational Exposure Limit-ECtime-weighted average 2 mg(Cr)/m3, FEB2006
Occupational Exposure Limit-JAPANOccupational Exposure Limit 0.5 mg(Cr)/m3, a2 sen, s1 sen, MAY2012
Occupational Exposure Limit-MEXICOtime-weighted average 0.5 mg(Cr)/m3, 2004
Occupational Exposure Limit-NEW ZEALANDtime-weighted average 0.5 mg(Cr)/m3, JAN2002
Occupational Exposure Limit-SWEDENtime-weighted average 0.5 mg(Cr)/m3, JUN2005
Occupational Exposure Limit-SWITZERLANDMAK-week 0.5 mg(Cr)/m3, inhal, sen, JAN2011
Occupational Exposure Limit-UNITED KINGDOMtime-weighted average 0.5 mg(Cr)/m3, OCT2007
Occupational Safety and Health Administration (OSHA) Permissible Exposure Limit (Construction)8H time-weighted average 0.5 mg(Cr)/m3CFRGBR 29,1926.55,1994
Occupational Safety and Health Administration (OSHA) Permissible Exposure Limit (Federal Contractors)8H time-weighted average 0.5 mg(Cr)/m3CFRGBR 41,50-204.50,1994
Occupational Safety and Health Administration (OSHA) Permissible Exposure Limit (General Industry)8H time-weighted average 0.5 mg(Cr)/m3CFRGBR 29,1910.1000,1994
Occupational Safety and Health Administration (OSHA) Permissible Exposure Limit (Shipyards)8H time-weighted average 0.5 mg(Cr)/m3CFRGBR 29,1915.1000,1993

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