Item Index
Appearance White powder


Packing& Storage

Packing In 25kg barrel
Storage 20℃, 2 years.
Shipping Room temperature in China; may vary elsewhere


General Information

1.1 Chemical & Physical Properties

Common Names Sodium stannate | Sodium tin oxide
CAS No. 12058-66-1 Boiling Point (℃) N/A
Molecular Weight 212.688 Melting Point (℃) 140°C
Appearance Colorless hexagonal plate-like crystals or white powder Vapor Specific Gravity N/A
HS Code 2841900090 Flash Point (℃) N/A
Solubility Soluble in water, insoluble in alcohol and acetone Autoignition Temperature (℃) N/A


1.2 Safety Information

Safety Phrases S26
WGK Germany
Packaging Group
Hazard Class


Inhalation Cough. Sore throat. Use local exhaust or breathing protection. Fresh air, rest.
Skin Redness. Burning sensation. Itching. Protective gloves. Remove contaminated clothes. Rinse and then wash skin with water and soap.
Eyes Redness. Pain. Wear safety goggles. First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.
Ingestion Abdominal pain. Nausea. Vomiting. Do not eat, drink, or smoke during work. Wash hands before eating. Rinse mouth. Induce vomiting (ONLY IN CONSCIOUS PERSONS!). Refer for medical attention .


1.3 Synthetic Route

The alkaline hydrolysis method melts the tin block and quenches it into tin flower by water, and then mixes with caustic soda and sodium nitrate, and the reaction temperature rises from 300 °C to 800 °C to generate sodium stannate, which is cooled and dissolved with water, and then added sodium sulfide and hydrogen peroxide purification to remove impurities, and after precipitation, it is filtered by evaporation, concentrated by evaporation, centrifuged, dried and crushed to obtain sodium stannate products.

The use of sodium stannate
It is mainly used for alkaline tin plating and copper plating in the electroplating industry and electroless plating of tin alloys, zinc-tin alloys, aluminum alloys, and other alloys. It is used as a fire retardant and weighting agent in the textile industry and as a mordant in the printing and dyeing industry. They are also used in glass, ceramics, and other industries.