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|Systematic IUPAC name|
3D model (Jmol)
|Molar mass||175.6 g mol−1|
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
The tellurite ion is TeO2−
3. A tellurite (compound), for example sodium tellurite, is a compound that contains this ion. Tellurites are highly stable tellurium compounds, although they can be reduced to elemental tellurium by electrolysis or a strong reducing agent.
In slightly acidic conditions, hydrogen tellurite ion, HTeO−
3, is prevalent; with more acidic conditions tellurous acid, H2TeO3, is prevalent. Only in basic conditions is tellurite formed.
Most tellurite compounds can be formed by heating the relevant oxide with tellurium dioxide, e.g., Na2O + TeO2 → Na2TeO3.
Potassium tellurite (K2TeO3) is used together with agar as part of a selective medium for growth of some bacteria (Clauberg medium). Corynebacteria and some other species reduce TeO2−
3 to elemental Te, which stains the bacteria black.
- "Tellurous Acid - PubChem Public Chemical Database". The PubChem Project. USA: National Center for Biotechnology Information.
- "Tellurite (CHEBI:30477)". Chemical Entities of Biological Interest (ChEBI). UK: European Bioinformatics Institute.