Stannous sulfate CAS 7488-55-3
Product Name: Stannous sulfate
CAS: 7488-55-3
MF: O4SSn
MW: 214.77
EINECS: 231-302-2
Melting point: 360 °C
Density: 4,15 g/cm3
1. Stannous sulfate is primarily used in acid tin electroplating baths for electronic components, automotive pistons, steel wire, and food packaging like tinplate .
2. Stannous sulfate is used as an electrolyte additive in lead-acid batteries to improve charge acceptance, reduce lead sulfate crystal size, and prolong battery cycle life .
3. Stannous sulfate serves as a reducing agent in analytical chemistry, a mordant in textile dyeing, a catalyst in biodiesel production, and a precursor for synthesizing tin dioxide (SnO₂) and transparent conducting oxides .
Packed in 1kg aluminum foil bag / fluorine bottle, 10kg aluminum cans / cardboard box, 25kg cardboard barrel / woven bag / plastic.
1. Stannous sulfate is a synthetic inorganic compound produced by reacting metallic tin with copper(II) sulfate in a displacement reaction: Sn + CuSO₄ → Cu + SnSO₄ .
2. Stannous sulfate is also synthesized via electrochemical methods using a two-compartment cell with tin metal as the anode and sulfuric acid as the electrolyte, achieving yields up to 98.83% under optimized conditions .
3. Stannous sulfate can be produced from tin powderization waste by first converting tin to stannous chloride (SnCl₂) with hydrochloric acid, then reacting SnCl₂ with ammonium sulfate to form Stannous sulfate .
1. Stannous sulfate is classified as an irritant (Hazard Code Xi) with risk statements R36/37/38, meaning Stannous sulfate causes irritation to eyes, respiratory system, and skin .
2. When handling Stannous sulfate, wear protective gloves, safety glasses, and suitable clothing, and wash thoroughly after handling to avoid inhalation of dust and contact with eyes .
3. Stannous sulfate has a melting point of 360°C, is moisture-sensitive, and is incompatible with strong oxidizing agents; Stannous sulfate is stable but slowly oxidizes in air, turning slightly yellow .
1. Store Stannous sulfate in a tightly closed container in a cool, dry, well-ventilated place, with recommended storage temperature of 0-6°C (refrigerated) .
2. Store Stannous sulfate away from moisture and strong oxidizing agents, as Stannous sulfate is moisture-sensitive and decomposes in water to form insoluble basic salts .
3. When kept dry and tightly closed in original packaging at room temperature, Stannous sulfate has a shelf life of at least 2 years .
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