The telluriteion is TeO2− 3. A tellurite (compound), for example sodium tellurite, is a compound that contains this ion. They are typically colorless or white salts, which in some ways are comparable to sulfite.[3] A mineral with the formula TeO2 is called tellurite.
Crystal structure of sodium tellurite, highlighting the pyramidal structure of the anion.
Tellurite dianion is pyramidal, like selenite and sulfite. The anion has C3vsymmetry.
Tellurites can be reduced to elemental tellurium by electrolysis or a strong reducing agent. When fused with nitrate salts, tellurite salts oxidize to tellurates (TeO2− 4).
Upon acidification of aqueous solutions of tellurite salts, solid hydrated tellurium dioxide (TeO2) precipitates. This reaction allows the separation of tellurium from selenium since selenous acid remains soluble at low pH. The intermediate in the protonation occurs at oxygen to give [TeO2(OH)]−.
Uses
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.
M. R. Masson, H. D. Lutz and B. Engelen (eds.) "Sulfites, Selenites and Tellurites", Pergamon Press, Oxford, 1986.
January 13, 2023
tellurite, this, article, about, mineral, mineral, tellurite, teo2, tellurite, compound, example, sodium, tellurite, compound, that, contains, this, they, typically, colorless, white, salts, which, some, ways, comparable, sulfite, mineral, with, formula, teo2,. This article is about the ion For the mineral see Tellurite mineral The tellurite ion is TeO2 3 A tellurite compound for example sodium tellurite is a compound that contains this ion They are typically colorless or white salts which in some ways are comparable to sulfite 3 A mineral with the formula TeO2 is called tellurite Tellurite NamesSystematic IUPAC name Tellurite 1 substitutive Trioxidotellurate 2 2 additive IdentifiersCAS Number 15852 22 93D model JSmol Interactive imageChEBI CHEBI 30477ChemSpider 102958 YGmelin Reference 100741PubChem CID 115037CompTox Dashboard EPA DTXSID10894775InChI InChI 1S H2O3Te c1 4 2 3 h H2 1 2 3 p 2 YKey SITVSCPRJNYAGV UHFFFAOYSA L YSMILES O Te O O PropertiesChemical formula O3Te2 Molar mass 175 6 g mol 1Conjugate acid Tellurous acidExcept where otherwise noted data are given for materials in their standard state at 25 C 77 F 100 kPa Infobox references Contents 1 Structure and reactions 2 Uses 3 See also 4 References 5 Further readingStructure and reactions Edit Crystal structure of sodium tellurite highlighting the pyramidal structure of the anion Tellurite dianion is pyramidal like selenite and sulfite The anion has C3v symmetry Tellurites can be reduced to elemental tellurium by electrolysis or a strong reducing agent When fused with nitrate salts tellurite salts oxidize to tellurates TeO2 4 Upon acidification of aqueous solutions of tellurite salts solid hydrated tellurium dioxide TeO2 precipitates This reaction allows the separation of tellurium from selenium since selenous acid remains soluble at low pH The intermediate in the protonation occurs at oxygen to give TeO2 OH Uses EditPotassium 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 See also EditList of telluritesReferences Edit 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 Greenwood Norman N Earnshaw Alan 1997 Chemistry of the Elements 2nd ed Butterworth Heinemann ISBN 978 0 08 037941 8 Further reading EditM R Masson H D Lutz and B Engelen eds Sulfites Selenites and Tellurites Pergamon Press Oxford 1986 Retrieved from https en wikipedia org w index php title Tellurite amp oldid 1098405876, wikipedia, wiki, book, books, library,
