Sodium tellurite
Sodium tellurite is a chemical compound. Its chemical formula is Na2TeO3. It contains sodium and tellurite ions.
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Properties[change]
Sodium tellurite is a colorless solid. The tellurite ion can react with water to make sodium hydrogen tellurite, NaHTeO3. It dissolves in water easily. It is a weak oxidizing agent (can be reduced to tellurium) and a weak reducing agent (can be oxidized to tellurates). It is part of the process in making tellurium.
Preparation[change]
It is made by reacting tellurium dioxide with sodium hydroxide, or by heating a telluride in air with sodium carbonate.
Uses[change]
Sodium tellurite is used in making tellurium. It is also used to make electroplated nickel corrosion-resistant. It can also be used to add a bluish coating to steel. It can be used to isolate certain types of bacteria that it is not toxic to.
