Agent Name

Magnesium stearate

CAS Number

557-04-0

Formula

C18-H36-O2.1/2Mg

Major Category

Other Classes

Synonyms

Dibasic magnesium stearate; Magnesium distearate; Magnesium octadecanoate; NP 1500; NS-M (salt); Octadecanoic acid, magnesium salt; Petrac MG 20NF; SM 1000; SM-P; Stearic acid, magnesium salt; Synpro 90; Synpro Magnesium Stearate 90; [ChemIDplus]

Category

Stearates

Description

White solid; [Merck Index] White odorless powder; [MSDSonline]

Sources/Uses

Used in baby dusting powders; as lubricant for plastics; as emulsifying agent in cosmetics; as drier in paints and varnishes; as flatting agent; as anticaking agent in foods and fire extinguishers; and as lubricant in making pharmaceutical tablets; [HSDB]

Comments

No listed effects of short-term or long-term exposure; [ICSC] Mildly toxic by ingestion; [HSDB] May cause irritation; [MSDSonline] See "STEARATES."

Exposure Assessment
Skin Designation (ACGIH)

Insufficient data

TLV (ACGIH)

10 mg/m3, inhalable particulate matter (3 mg/m3 for respirable particulate matter)

Adverse Effects
ACGIH Carcinogen

Not Classifiable

Links to Other NLM Databases
Health Studies

Human Health Effects from Hazardous Substances Data Bank:

Toxicity Information

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Chemical Information

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Related Information in HazMap
Processes

Industrial Processes with risk of exposure: