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In aqueous solution tellurate ions are 6 coordinate. In neutral conditions the pentahydrogen orthotellurate ion, H 5 TeO − 6, is the most common; in basic conditions, the tetrahydrogen orthotellurate ion, H 4 TeO 2− 6, and in acid conditions, orthotelluric acid, Te(OH) 6 or H 6 TeO 6 is formed. [8]
Environmentally, tellurite [TeO 3] 2-is the more abundant anion due to tellurate's [TeO 4] 2-low solubility limiting its concentration in biospheric waters. Another way to refer to the anions is tellurium's oxyanions , which happen to be relatively stable.
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]
The model is defined in terms of a list of those complex species which are present in solutions in significant amounts. In the present context the complex species have the general formula [M p O q (OH) r] n±. where p, q and r define the stoichiometry of the species and n± gives the electrical charge of the ion. The experimental data are ...
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 K a1 = 2 × 10 −3 HTeO − 3 + H 2 O ⇌ H 3 O + + TeO 2− 3 K a2 = 1 × 10 −8
Tellurate minerals contain a tellurate anion, either metatellurate (TeO 2 ...
Sodium tellurite is an inorganic tellurium compound with formula Na 2 TeO 3. It is a water-soluble white solid and a weak reducing agent . Sodium tellurite is an intermediate in the extraction of the element, tellurium; it is a product obtained from anode slimes and is a precursor to tellurium.
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