Agent Name

Zinc stearate

CAS Number

557-05-1

Formula

C36-H70-O4.Zn

Major Category

Other Classes

Synonyms

Coad; Dermarone; Dibasic zinc stearate; Hydense; Hytech; Mathe; Metallac; Metasap 576; Octadecanoic acid, zinc salt; Petrac ZN-41; Stavinor ZN-E; Stearates; Stearic acid, zinc salt; Synpro stearate; Synpro stearate (VAN); Talculin Z; Unichem ZS; Witco Zinc Stearate USP; Zinc distearate; Zinc octadecanoate; Zinc stearate; Zinc stearate W. S; Zinci stearas; Zincum stearinicum; Zink distearat; Zn Stearate; [ChemIDplus]

Category

Stearates

Description

Soft, white powder with a slight, characteristic odor; [NIOSH]

Sources/Uses

Used to manufacture drugs, lacquers, and plastics; also used as a dietary supplement, waterproofing agent, heat and light stabilizer, and lubricant; [HSDB] Stearates are salts of octadecanoic acid. Zinc stearate is used in cosmetic powders for its adhesive properties. [ACGIH]

Comments

A skin, eye, and respiratory tract irritant; [CAMEO] "Acute stearate aspiration of large (but unknown) amounts (particularly zinc stearate) has been associated with pulmonary damage in infants." [ACGIH] See "Zinc." See "STEARATES."

Exposure Assessment
Skin Designation (ACGIH)

Insufficient data

TLV (ACGIH)

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

PEL (OSHA)

15 mg/m3(total dust), 5 mg/m3(respirable fraction)

MAK

0.1 mg/m3(respirable fraction), 2 mg/m3 (inhalable fraction)

Explanatory Notes

Flash point = 277 deg C;

Half Life

For zinc, whole body: 162-500 days; [TDR, p. 1245]

Adverse Effects
ACGIH Carcinogen

Not Classifiable

Links to Other NLM Databases
Health Studies

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