Stannate
From Infogalactic: the planetary knowledge core
In chemistry the term stannate refers to compounds of tin (Sn). Stannic acid (Sn(OH)4), the formal precursor to stannates does not exist and is actually a hydrate of SnO2. The term is also used in naming conventions as a suffix for example the hexachlorostannate ion is SnCl62−.
In materials science, two kinds of tin oxyanions are distinguished:
- orthostannates contain discrete SnO44− units (e.g. K4SnO4) or have a spinel structure (e.g. Mg2SnO4)
- metastannates with a stoichiometry MIISnO3, MI2SnO3 which may contain polymeric anions or may be sometimes better described as mixed oxides
These materials are semiconductors.[1]
See also
References
- ↑ Preparation, characterization and structure of metal stannates: a new family of photocatalysts for organic pollutants degradation. Handbook of Photocatalysts (2010), pp. 493-510. Nova Science Publishers, Inc., Hauppauge, N. Y
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