White powder, soluble in water and dilute sulphuric acid.
| Chemical composition | Assay（%） | Test report（%） |
| Stannous Sulfate | ≥99 | 99.64 |
| Sn | 53 – 54 | 53.75 |
| Acid insoluble | ≤0.0053 | 0.0050 |
| Sb | ≤0.0030 | 0.0020 |
| CL | ≤0.0050 | 0.0050 |
| Pb | ≤0.0066 | 0.0064 |
| Fe | ≤0.0040 | 0.0030 |
| As | ≤0.0002 | 0.0002 |
| Alkali metal and alkaline earth metals (in sulfate) | ≤0.1000 | 0.1000 |
Specifications
Stannous sulfate
| CAS number | 7748-55-3 |
| HS number | 2833299090 |
| Grade | Industrial grade |
| Molecular formula | SnSO4 |
| Properties | White powder, soluble in water and dilute sulphuric acid. |
| Application | Used for tin or chemical reagents, such as alloy, tinplate, piston cylinder, wire and other acidic plating, electronics bright tin plating, etc., used in manufacturing aluminum alloy coating oxidation coloring, used as a mordant dyeing industry, organic solution of hydrogen peroxide remover, etc. |
| Package | 25 kg per bag. |