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Registry of Toxic Effects of Chemical Substances (RTECS)

Calcium molybdate

RTECS #

EW2975000

CAS #

7789-82-4

Updated

September 201

Molecular Weight

200.02

Molecular Formula

MoO4·Ca

Synonyms

Calcium molybdenum oxide (CaMoO4)
Molybdate, calcium
Molybdic acid (H2MoO4), calcium salt (1:1)

Acute Toxicity Data and References

Route/OrganismDoseEffectReference
intraperitoneal/rat lethal dose (50 percent kill): 208 mg/kgEQSSDX 1,1,1975

Reviews

OrganizationStandardReference
American Conference of Governmental Industrial Hygienists (ACGIH)Threshold Limit Value-time-weighted average 3 mg(Mo)/m3 (resp)DTLVS* TLV/BEI,2013
American Conference of Governmental Industrial Hygienists (ACGIH)Threshold Limit Value-time-weighted average 10 mg(Mo)/m3 (inhal)DTLVS* TLV/BEI,2013
TOXICOLOGY REVIEWENTOX* -,145,2005

Standards and Regulations

OrganizationStandardReference
Mine Safety and Health Administration (MSHA) STANDARD-airtime-weighted average 10 mg(Mo)/m3DTLVS* 3,173,1971
Occupational Exposure Limit IN ARGENTINA, BULGARIA, COLOMBIA, JORDAN check ACGIH TLV;
Occupational Exposure Limit IN SINGAPORE, VIETNAM check ACGIH TLV
Occupational Exposure Limit-AUSTRALIAtime-weighted average 10 mg(Mo)/m3, JUL2008
Occupational Exposure Limit-BELGIUMtime-weighted average 10 mg(Mo)/m3, MAR2002
Occupational Exposure Limit-FRANCEVME 5 mg(Mo)/m3, VLE 10 mg(Mo)/m3, FEB2006
Occupational Exposure Limit-HUNGARYtime-weighted average 5 mg(Mo)/m3, short term exposure limit 20 mg(Mo)/m3, SEP2000
Occupational Exposure Limit-KOREAtime-weighted average 5 mg(Mo)/m3, 2006
Occupational Exposure Limit-NEW ZEALANDtime-weighted average 5 mg(Mo)/m3, JAN2002
Occupational Exposure Limit-POLANDMAC(time-weighted average) 4 mg(Mo)/m3, MAC(short term exposure limit) 10 mg(Mo)/m3, JAN1999
Occupational Exposure Limit-SWEDENtime-weighted average 10 mg(Mo)/m3 (total dust); time-weighted average 5 mg(Mo)/m3 (resp. dust), JUN2005
Occupational Exposure Limit-SWITZERLANDMAK-week 10 mg(Mo)/m3, inhal, JAN2011
Occupational Exposure Limit-THE PHILIPPINEStime-weighted average 15 mg(Mo)/m3, JAN1993
Occupational Exposure Limit-TURKEYtime-weighted average 15 mg(Mo)/m3, JAN1993
Occupational Exposure Limit-UNITED KINGDOMtime-weighted average 10 mg(Mo)/m3;short term exposure limit 20 mg(Mo)/m3, OCT2007
Occupational Safety and Health Administration (OSHA) Permissible Exposure Limit (Construction)8H time-weighted average 15 mg(Mo)/m3, total dustCFRGBR 29,1926.55,1994
Occupational Safety and Health Administration (OSHA) Permissible Exposure Limit (Construction)8H time-weighted average 5 mg(Mo)/m3CFRGBR 29,1926.55,1994
Occupational Safety and Health Administration (OSHA) Permissible Exposure Limit (Federal Contractors)8H time-weighted average 15 mg(Mo)/m3, total dustCFRGBR 41,50-204.50,1994
Occupational Safety and Health Administration (OSHA) Permissible Exposure Limit (Federal Contractors)8H time-weighted average 5 mg(Mo)/m3CFRGBR 41,50-204.50,1994
Occupational Safety and Health Administration (OSHA) Permissible Exposure Limit (General Industry)8H time-weighted average 15 mg(Mo)/m3, total dustCFRGBR 29,1910.1000,1994
Occupational Safety and Health Administration (OSHA) Permissible Exposure Limit (General Industry)8H time-weighted average 5 mg(Mo)/m3CFRGBR 29,1910.1000,1994
Occupational Safety and Health Administration (OSHA) Permissible Exposure Limit (Shipyards)8H time-weighted average 15 mg(Mo)/m3, total dustCFRGBR 29,1915.1000,1993
Occupational Safety and Health Administration (OSHA) Permissible Exposure Limit (Shipyards)8H time-weighted average 5 mg(Mo)/m3CFRGBR 29,1915.1000,1993

NIOSH Documentation and Surveillance

OrganizationStandardReference
National Occupational Hazard Survey 1974Hazard Code 82151; Number of Industries 1; Total Number of Facilities 14; Number of Occupations 5; Total Number of Employees Exposed 608

Status in Federal Agencies

OrganizationReference
EPA TSCA Section 8(b) CHEMICAL INVENTORY
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