Agent Name

Pyrophyllite

CAS Number

12269-78-2

Formula

Al.2H2-O3-Si

Major Category

Mineral Dusts

Synonyms

Aluminosilicate; Grade A Lava Powder; Pulverized/powdered pyrophyllite stone; [Superior Technical Ceramics MSDS]

Category

Other Mineral Dusts

Description

Black or dark grey powder; [Superior Technical Ceramics MSDS]

Sources/Uses

Permitted for use as an inert ingredient in non-food pesticide products; [EPA] Used as a raw material for ceramics; [Superior Technical Ceramics MSDS] "Pyrophyllite is a phyllosilicate mineral composed of aluminium silicate hydroxide: Al2Si4O10(OH)2. It occurs in two more or less distinct varieties, namely, as crystalline folia and as compact masses; distinct crystals are not known." [Wikipedia]

Comments

Contains approximately 5% carbon and less than 1% crystalline silica; A naturally occurring mineral with no known hazards; Dust may cause irritation; Chronic inhalation of dust may cause pneumoconiosis; [Superior Technical Ceramics MSDS]

Links to Other NLM Databases
Toxicity Information

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Chemical Information

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Related Information in HazMap
Activities

Activities with risk of exposure: