Tin Sulfate
Stannous Sulfate, Tin (II) Sulfate, Sulfuric acid tin(2+) salt.
- CAS
- 7488-55-3
- EC
- 231-302-2
- Sectors
- Electronics & Solar PV, Automotive, Building & Construction
Tin Sulfate (CAS 7488-55-3) is an inorganic tin(II) salt of sulfuric acid, supplied as an off-white crystalline solid that is highly soluble in water and stable in acidic baths, serving as the primary source of stannous ions in acid tin plating for electronic components, automotive parts, and architectural aluminum coloring. It offers a Technical Grade solution for depositing uniform tin coatings on metal substrates, ensuring excellent solderability and corrosion resistance.
This compound acts as a critical reducing agent in various chemical processes. Its high solubility in water and acidic stability make it the preferred choice for electrolytic tinning lines in the automotive and hardware sectors.
As a high-performance surface treatment agent, it facilitates the production of architectural aluminum through electrolytic coloring. It maintains consistent chemical stability and ensures high-speed deposition in continuous plating operations.
Typical Properties
| Molecular formula | H2O4S.Sn |
|---|---|
| Molecular weight | 214.77 g/mol |
| Appearance | off-white solid |
| Form | Solid |
| Color | White to off-white |
| Odor | Odorless |
| Melting point | 360 °C (decomp) |
| Density | 1.35 g/cm³ |
| Water solubility | 330 g/L (20 °C) |
| pH | 1.6 (50g/l, H2O, 20°C) |
| HS code | 28332990 |
| Grades available | Technical Grade |
Typical literature values for identification; lot-specific results are stated on the certificate of analysis (COA) and the safety data sheet (SDS) that accompany every delivery.
Tin Sulfate
Applications
- Electroplating: Used as a primary source of stannous ions in acid tin plating for electronic components and automotive parts.
- Anodizing Aluminum: Applied in the electrolytic coloring process to produce bronze and black finishes on architectural profiles.
- Chemical Intermediate: Serves as a reagent in the synthesis of other tin-based inorganic salts and specialty stabilizers.
Safety & Risks
Classified as Corrosive and Harmful if swallowed. It causes Skin Irritation and Serious Eye Damage. Always utilize Chemical Resistant Gloves, Safety Goggles, and Protective Clothing (PPE) during handling.
Packaging
Standard 25 kg Plastic Drums, 25 kg Bags, or 1000 kg IBC Tanks for large-scale industrial use.