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Registry of Toxic Effects of Chemical Substances (RTECS)

Chromium(II) chloride (1:2)

RTECS #

GB5250000

CAS #

10049-05-5

Updated

March 2011

Molecular Weight

122.90

Molecular Formula

Cl2Cr

Synonyms

Chromium dichloride
Chromium(II) chloride
Chromous chloride

Mutation Data and Reference

System TestRoute/Organism/TissueDoseReference
mutation in microorganisms/Salmonella typhimurium1 mg/L (+enzymatic activation step)BECTA6 40,597,1988
phage inhibition capacity/Escherichia coli33300 ng/wellMUREAV 260,349,1991

Acute Toxicity Data and References

Route/OrganismDoseEffectReference
intraperitoneal/rat lowest published toxic dose: 8.4 mg/kgEndocrine: Hyperglycemia

Blood: Other changes
TXAPA9 32,316,1975
oral/rat lethal dose (50 percent kill): 1870 mg/kgAIHAAP 30,470,1969

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-ECtime-weighted average 2 mg(Cr)/m3, FEB2006
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-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

NIOSH Documentation and Surveillance

OrganizationStandardReference
National Occupational Hazard Survey 1974Hazard Code 83431; Number of Industries 4; Total Number of Facilities 76; Number of Occupations 4; Total Number of Employees Exposed 352

Status in Federal Agencies

OrganizationReference
EPA TSCA Section 8(b) CHEMICAL INVENTORY
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