Potassium stannate

Potassium stannate (CAS 12142-33-5), also known as dipotassium stannate, is an inorganic tin salt used primarily as a source of stannate ions in electroplating baths and surface treatment processes.

Where is Potassium stannate used?

• Electronics: alkaline tin plating baths
• Electronics: uniform, adherent tin coatings on printed circuit board components and connector parts
• Metal substrates: controlled tin deposition for corrosion-resistant and solderable coatings
• Textiles: mordant and weighting agent for silk and synthetic fabrics
• Leather: surface modifier enhancing adhesion of finishing coats
• Plastics: stabilizer additive in select polymer systems where tin-based chemistry is required
• It improves handle and dye uptake during textile manufacturing.

Commercial specifications

• Purity specifications commonly stated on a dry-weight basis
• Packaging from kilogram-scale laboratory quantities to bulk industrial quantities