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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.
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 redox potential is −1.14 V. [2] Te(s) + 2 e − ↔ Te 2−
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 ]
The tellurium oxides and hydrated oxides form a series of acids, including tellurous acid (H 2 TeO 3), orthotelluric acid (Te(OH) 6) and metatelluric acid ((H 2 TeO 4) n). [9] The two forms of telluric acid form tellurate salts containing the TeO 2– 4 and TeO 6− 6 anions, respectively. Tellurous acid forms tellurite salts containing the ...
Tellurous acid is an inorganic compound with the formula H 2 TeO 3. It is the oxoacid of tellurium(IV). [2] This compound is not well characterized. An alternative way of writing its formula is (HO) 2 TeO. In principle, tellurous acid would form by treatment of tellurium dioxide with water, that is by hydrolysis.
This salt is the conjugate base of the thermally unstable acid hydrogen telluride, but it is usually prepared by reduction of tellurium with sodium. Na 2 Te is a challenging material to handle because it is very sensitive to air. Air oxidizes it initially to polytellurides, which have the formula Na 2 Te x (x > 1), and ultimately Te metal.
hydrosulfuric acid: H 2 S: 7.0: hydrogen selenide selenium hydride (selane) hydroselenic acid: H 2 Se: 3.89: hydrogen telluride tellurium hydride (tellane) hydrotelluric acid: H 2 Te: 2.6: hydrogen polonide polonium hydride (polane) hydropolonic acid: H 2 Po? hydrogen livermoride livermorium hydride (livermorane) hydrolivermoric acid: H 2 Lv?
These are mixed anion compounds, meaning the compounds are cations that contain one or more anions. Some have third anions. Some have third anions. 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.