Sodium Tellurite IV, Tellurous acid disodium salt
3D model (JSmol)
CompTox Dashboard (EPA)
|Molar mass||221.57774 g/mol|
|Appearance||white crystals, powder|
|Melting point||710 °C|
|Boiling point||unknown (very high)|
greater than or equal to 100 mg/mL at 68°F
|R-phrases||R23 R24 R25|
|S-phrases||S22 S36 S37 S39 S45|
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Properties[change | change source]
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 | change source]
Uses[change | change source]
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.