Agent Name

Aluminum silicate, anhydrous

CAS Number

22708-90-3

Formula

Al.1/2H6-O7-Si2

Major Category

Metals

Synonyms

Anhydrous aluminum silicate; Dialuminium silicate; Silicic acid (H6Si2O7), aluminum salt (1:2); [ChemIDplus] Aluminum silicate particles; [Thermo Scientific MSDS]

Category

Metals, Inorganic Compounds

Description

White odorless powder; Insoluble in water; [Thermo Scientific MSDS]

Comments

May cause irritation; [Thermo Scientific MSDS] See "Aluminum silicate.", "Kaolin.", and "Bentonite."

Exposure Assessment
TLV (ACGIH)

1 mg/m3, respirable fraction

PEL (OSHA)

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

MAK

4 mg/m3, (inhalable fraction), 1.5 mg/m3 (respirable fraction)

Explanatory Notes

TLV, PEL, and MAK values for aluminum metal and insoluble compounds;

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