Physical and chemical properties：
Stannous sulfate is a white or pale yellow crystalline powder, soluble in water and dilute sulfuric acid. Its aqueous solution decomposes rapidly, and it starts to decompose into basic salts at temperatures above 360℃. Stannous sulfate oxidizes slowly in the air, turning slightly yellow.
Applications：
The main uses of stannous sulfate are in tin plating or as a chemical reagent, such as in acid plating of alloys, tinplate, cylinder pistons, steel wires, etc., and bright tin plating of electronic devices. In addition, it is used in the oxidation coloring of coatings for aluminum alloy products, as a mordant in the printing and dyeing industry, and as a hydrogen peroxide remover in organic solutions, etc.
| Specifications | Electroplating Grade | |
|---|---|---|
| Packing: | 25kg/drum, in plastic or iron drums with inner bag,or as customer's requirements. | |
| Appearance | Clear liquid | |
| Assy(SnSO4) % | ≥99 | |
| Sn % | ≥55 | |
| Fe % | ≤0.005 | |
| As% | ≤0.001 | |
| Pb % | ≤0.002 | |
| Heavy metal(as Pb) % | ≤0.005 | |
| Sulfate（SO4)% | ≤0.3 | |
| Acid insoluble % | ≤0.05 | |
Transportation conditions: It is strictly prohibited to mix and transport with oxidants, acids, edible chemicals, etc. During transportation, exposure to sunlight, rain, and high temperatures should be prevented. The vehicle should be cleaned after transportation. For road transportation, it shall follow the specified route. Air transportation:Stannous sulfate can be handled under ordinary cargo conditions.
Storage conditions: It should be stored in a cool and dry place. Attention should be paid to protecting it from sunlight, moisture and package damage. It is recommended to stack it on shelves or single-layer pallets.
Shelf life: Under the above storage and transportation conditions, the shelf life is 12 months.
