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In contrast to the analogous compound selenous acid, tellurous acid is only metastable. Most tellurite salts contain the TeO 2− 3 ion. Oxidation of its aqueous solution with hydrogen peroxide gives the tellurate ion. It is usually prepared as an aqueous solution where it acts as a weak acid. [1] [3] H 2 TeO 3 + H 2 O ⇌ H 3 O + + HTeO − 3 ...
The compound Rb 6 Te 2 O 9 contains both TeO 4− 5 and TeO 2− 4 anions. [11] Other compounds whose stoichiometry suggests the presence of TeO 4− 5 may contain either the dimeric Te 2 O 8− 10 made up of two edge-sharing {TeO 6} as in Li 4 TeO 5 [3] and Ag 4 TeO 5 [12] or corner-sharing {TeO 6} octahedra as in Hg 2 TeO 5. [4]
Tellurite is a oxyanion of tellurium with the formula TeO 2− 3. It is the ion of tellurous acid, and is chemically related to tellurium dioxide (TeO 2), whose mineral appearance also bears the name tellurite. Tellurites are typically colorless or white salts, which in some ways are comparable to sulfite. [3]
A tellurite tellurate is a chemical compound or salt that contains tellurite and tellurate anions [TeO 3] 2-[TeO 4] 2-.These are mixed anion compounds, meaning the compounds are cations that contain one or more anions.
The telluride ion is the anion Te 2− and its derivatives. It is analogous to the other chalcogenide anions, the lighter O 2−, S 2−, and Se 2−, and the heavier Po 2−. [1]In principle, Te 2− is formed by the two-e − reduction of tellurium.
The acidity of tellurols can be inferred by the acidity and dissociation constant of hydrogen telluride, H 2 Te, which has a (first) pK a of 2.64 corresponding to a dissociation constant of 2.3 × 10 −3. H 2 Te has a lower pK a and higher dissociation constant than H 2 S and H 2 Se. [4] The pKa is 9.3 for (Me 3 Si) 3 CTeH vs 10.8 for (Me 3 Si ...
Hydrogen telluride is the inorganic compound with the formula H 2 Te.A hydrogen chalcogenide and the simplest hydride of tellurium, it is a colorless gas.Although unstable in ambient air, the gas can exist long enough to be readily detected by the odour of rotting garlic at extremely low concentrations; or by the revolting odour of rotting leeks at somewhat higher concentrations.
Telluric acid, or more accurately orthotelluric acid, is a chemical compound with the formula Te(OH) 6, often written as H 6 TeO 6.It is a white crystalline solid made up of octahedral Te(OH) 6 molecules which persist in aqueous solution. [3]