Stannous sulfate CAS 7488-55-3, with the molecular formula SnSO4 and a molecular weight of 214.75, is a white or light yellow crystalline powder that is soluble in water and dilute sulfuric acid, and rapidly decomposes in aqueous solutions. The main use is for tin plating or chemical reagents, such as acidic electroplating of alloys, tinplate, cylinder pistons, steel wires, and bright tin plating of electronic devices. In addition, it is also used for oxidation coloring of aluminum alloy products coatings, as a mordant in the printing and dyeing industry, and as a hydrogen peroxide remover in organic solutions.

Chinese Name: Tin Sulfate Tin Sulfate (II)

Foreign name: Stannous sulfonate

Chemical formula: SnSO4

Molecular weight: 214.7476

CAS login number: 7488-55-3

EINECS login number: 231-302-2

Melting point: 360 ℃

Physical and chemical properties

Character: White or light yellow crystalline powder

Melting point: 360 ℃

Density: 4.15 g/cm3

Storage conditions: 0-6 ℃

Water solubility: 330 g/L (20 ℃)

Solubility: It is soluble in water and dilute sulfuric acid, and the aqueous solution rapidly decomposes.

2SnSO4+2H2O==(SnOH) 2SO4 ↓+H2SO4

Above 360 ℃, it begins to decompose into alkaline salts, which slowly oxidize in the air and turn slightly yellow.

Main purpose

Mainly used for tin plating in the electroplating industry, oxidation coloring of aluminum alloy surfaces, mordant agents in the printing and dyeing industry, hydrogen peroxide removers, etc.

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