Agent Name

Aluminum sodium sulfate dodecahydrate

Alternative Name

Sodium alum

CAS Number

7784-28-3

Formula

Al.2H2-O4-S.12H2-O.Na

Major Category

Metals

Synonyms

Sodium alum; Alum, porous; Alum, sodium; Aluminum sodium disulfate dodecahydrate; Aluminum sodium sulfate (AlNa(SO4)2) dodecahydrate; Monoaluminum monosodium disulfate dodecahydrate; Soda alum; Sodium aluminum sulfate; Sodium aluminum sulfate dodecahydrate; Sodium aluminum sulfate dodecahydrate (NaAl(SO4)2.12H2O); Sulfuric acid, aluminum sodium salt (2:1:1), dodecahydrate; Aluminum sodium sulfate; [ChemIDplus]

Category

Metals, Inorganic Compounds

Description

Colorless solid, soluble in water; [Hawley]

Sources/Uses

Found as the mineral mendozite; Used to bleach flour, engrave metal, waterproof textiles, tan leather, size paper, refine sugar, and purify water; Also used as a dye mordant, food additive, precipitant, and in ceramics, matches, inks, and baking powders; [HSDB]

Comments

A severe eye irritant, based animal studies of related compound; [CHEMINFO] See "Aluminum potassium sulfate dodecahydrate." See "Aluminum."

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