Sodium tellurite (Na2TeO3)-Powder

Characteristic

Sodium tellurite is an inorganic tellurium compound with formula Na₂TeO₃. It is a water-soluble white solid and a weak reducing agent. 

Chemical formula：Na₂TeO₃

Molar mass：221.57774 g/mol

Appearance：white crystals, powder

Density：6.245 g/cm³

Melting point：710 °C (1,310 °F; 983 K)

Boiling point：unknown (very high)

Solubility in water：soluble

greater than or equal to 100 mg/mL at 68°F

Crystal structure：rhombic

Application

Sodium tellurite improves the corrosion resistance of electroplated nickel layers. Solutions of sodium tellurite are used for black or blue-black coatings on iron, steel, aluminum, and copper. In microbiology, sodium tellurite can be added to the growth medium to isolate bacteria with an inherent physiological resistance to its toxicity.