Potassium Stannate CAS 12142-33-5
Product Name: Potassium stannate
CAS: 12142-33-5
MF: K2O3Sn
MW: 244.9
EINECS: 235-255-9
Melting point: 140°C
Density: 3,197 g/cm3
Potassium Stannate CAS 12142-33-5 is used for tin-sulfate tin plating (especially for tin plating in electronics, automotive manufacturing, canned food packaging, etc.) and textile printing and dyeing industries, and also for glass, ceramics and other industries.
Packed in 25 kg per plastic woven bag or based on customers' requirements.
1. Potassium stannate (CAS 12142-33-5) is a synthetic inorganic compound produced by reacting tin with concentrated nitric acid to form beta-stannic acid, which is then reacted with potassium hydroxide .
2. Potassium stannate is industrially produced by reacting tin with a mixture of concentrated nitric acid and potassium hydroxide, followed by cooling, filtration, and crystallization to obtain high-purity product .
3. Potassium stannate can also be prepared by dissolving freshly prepared stannic acid precipitate in potassium hydroxide solution, then concentrating and crystallizing the product .
1. Potassium stannate is classified with GHS Warning, with hazard statements H315 (causes skin irritation), H319 (causes serious eye irritation), and H335 (may cause respiratory irritation) .
2. When handling Potassium stannate, wear chemical splash goggles, chemical-resistant gloves, impervious clothing, and use adequate ventilation to avoid breathing dust .
3. Potassium stannate is a yellow triangle chemical under EPA Safer Choice criteria, meaning Potassium stannate has met functional ingredient criteria but has some hazard profile issues requiring caution .
1. Store Potassium stannate in a tightly closed container in a cool, dry, well-ventilated place away from incompatible substances .
2. Store Potassium stannate at room temperature (RT) for long-term storage, with some sources indicating three years of stability when stored properly .
3. Store Potassium stannate away from carbon dioxide, as Potassium stannate absorbs CO₂ from air and decomposes into potassium carbonate and tin hydroxide .
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