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Registry of Toxic Effects of Chemical Substances (RTECS)

Stearic acid, magnesium salt

RTECS #

WI4390000

CAS #

557-04-0

Updated

September 201

Molecular Weight

591.37

Molecular Formula

C36H70O4·Mg

Synonyms

Dibasic magnesium stearate
Magnesium stearate
Octadecanoic acid, magnesium salt
Petrac MG 20NF
Stearates (ACGIH)

Acute Toxicity Data and References

Route/OrganismDoseEffectReference
oral/rat lethal dose (50 percent kill): >10000 mg/kgHPV282 -,-,2003

Other Multiple Dose Data and References

Route/OrganismDoseEffectReference
oral/rat lowest published toxic dose: 1092 gm/kg/13W- continuousLiver: Changes in liver weight

Nutritional and Gross Metabolic: Weight loss or decreased weight gain

Related to Chronic Data: Death in the "MULTIPLE DOSE" data type field
TXCYAC 17,51,1980
oral/rat lowest published toxic dose: 675 gm/kg/90D- intermittentLiver: Changes in liver weight

Kidney, Ureter, and Bladder: Other changes

Kidney, Ureter, and Bladder: Changes in kidney weight
HPV282 -,-,2003

Reviews

OrganizationStandardReference
American Conference of Governmental Industrial Hygienists (ACGIH)Threshold Limit Value-time-weighted average 10 mg/m3DTLVS* TLV/BEI,2013
American Conference of Governmental Industrial Hygienists (ACGIH)Threshold Limit Value-Not classifiable as a human carcinogenDTLVS* TLV/BEI,2013

Standards and Regulations

OrganizationStandardReference
Occupational Exposure Limit-NEW ZEALANDtime-weighted average 10 mg/m3 (inspirable dust), JAN2002
Occupational Exposure Limit-SWEDENtime-weighted average 5 mg/m3, JUN2005

NIOSH Documentation and Surveillance

OrganizationStandardReference
National Occupational Exposure Survey 1983Hazard Code X6914; Number of Industries 1; Total Number of Facilities 64; Number of Occupations 2; Total Number of Employees Exposed 320
National Occupational Exposure Survey 1983Hazard Code 81884; Number of Industries 57; Total Number of Facilities 5057; Number of Occupations 78; Total Number of Employees Exposed 184994; Total Number of Female Employees Exposed 101129
National Occupational Hazard Survey 1974Hazard Code 81884; Number of Industries 19; Total Number of Facilities 2092; Number of Occupations 34; Total Number of Employees Exposed 31116

Status in Federal Agencies

OrganizationReference
EPA TSCA Section 8(b) CHEMICAL INVENTORY
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