Agent Name

STEARATES

Alternative Name

CLASS

CAS Number

57-11-4; 557-04-0; 822-16-2; 557-05-1

Formula

varies

Major Category

Other Classes

Synonyms

CLASSES; Stearic acid; Magnesium stearate; Sodium stearate; Zinc stearate;[ACGIH]

Category

Stearates

Description

White to yellow powder or wax-like substance; Stearates are salts of octadecanoic acid; [ACGIH]

Sources/Uses

Used in cosmetics, pharmaceuticals, food additives, waterproofing agents, plastic stabilizers, emulsifiers, and rubber lubricants and dusting agents; "Stearic acid occurs naturally in human and animal fats and oils and in some vegetable oils, including cocoa oil. Stearic acid can be prepared from animal fat (triglyceride) by treating with water at high temperature, leading to hydrolysis of triglycerides, or by hydrogenation of unsaturated vegetable oils such as cottonseed oil." [ACGIH]

Comments

"This TLV Documentation applies only to stearic acid and magnesium, sodium, and zinc stearates. It excludes stearates of other metals." TLV Basis is "lower respiratory tract irritation." "No acute systemic effects of stearic acid have been reported after ingestion. . . . Sprague-Dawley rats fed stearic acid in their diet at 3000 ppm for 209 days showed 'severe pulmonary infection consisting of tracheobronchitis, lobular pneumonia, lipoid histiocytic response, and abscess formation.'" [ACGIH] See "Stearic acid."

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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Other Information

No other related information on this agent was found.