Agent Name

Mullite

CAS Number

1302-93-8

Formula

Al6-O13-Si2

Major Category

Mineral Dusts

Synonyms

AM 72S; Aluminosilicate (Mullite); CK 1081; Cerabeads 1700; MLS 62; MP 40; MP 40-02; Mullite-alpha; [ChemIDplus] DYNAMULLIT; [IUCLID] 3M Interam 1550HT; [3M MSDS]

Category

Other Mineral Dusts

Description

White odorless powder; Insoluble in water; [Alfa Aesar MSDS]

Sources/Uses

Used in automotive applications; [3M MSDS] Mullite or porcelainite is a rare silicate mineral of post-clay genesis. It can form two stoichiometric forms 3Al2O32SiO2 or 2Al2O3 SiO2. . . . Mullite is present in the form of needles in porcelain. It is produced artificially during various melting and firing processes, and is used as a refractory material, due to its high melting point of 1840 deg C." [Wikipedia]

Comments

A 13-week inhalation study of rats produced dose-dependent nasal irritation and mild respiratory tract inflammation (considered of low toxicity, with effects similar to those produced by titanium dioxide and amorphous silica); [ToxPlanet: EPA - TSCATS] Contains 0-5% acrylate copolymer; May cause mechanical skin and eye irritation; Prolonged or repeated inhalation exposure may cause upper respiratory irritation and pneumoconiosis; [3M MSDS]

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