Sodium stannate trihydrate

Sodium stannate trihydrate

Sodium stannate trihydrate

Molecular Formula

 Na2SnO3 ·3H2O Specification AR

Molecular Weight

266.73
CAS No

12209-98-2

Physical and Chemical Properties

 White crystalline powder, soluble in water, easily hydrolyzed, insoluble in ethanol and acetone

Use

 Mainly used in the electroplating industry for alkaline tin plating, copper plating, tin aluminum alloy electroplating, textile industry, dye industry as a mordant, and also used in industries such as glass and ceramics.

Package

 Plastic bucket, 25kg/bucket, or packaged according to user requirements.

Main Technical Index

Index Name

 Standard

Sn

 ≥42.0%

Free base (NaOH)

≤3.5%
Iron

≤0.003%
Heavy Metals (by Pb)

≤0.002%

Sb

 ≤0.003%

As

≤0.001%
NO2

≤0.1%

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