Search results
Results from the WOW.Com Content Network
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 −2 oxidation state is exhibited in binary compounds with many metals, such as zinc telluride, ZnTe, produced by heating tellurium with zinc. [2] Decomposition of ZnTe with hydrochloric acid yields hydrogen telluride (H 2 Te), a highly unstable analogue of the other chalcogen hydrides, H 2 O, H 2 S and H 2 Se:
This page was last edited on 1 November 2023, at 01:15 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.
A hydrotelluride or tellanide is an ion or a chemical compound containing the [HTe] − anion which has a hydrogen atom connected to a tellurium atom. HTe is a pseudohalogen . Organic compounds containing the -TeH group are called tellurols .
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−
Water, hydrogen sulfide, and hydrogen selenide may be made by heating their constituent elements together above 350 °C, but hydrogen telluride and polonium hydride are not attainable by this method due to their thermal instability; hydrogen telluride decomposes in moisture, in light, and in temperatures above 0 °C.
The discovery, they say, may be the most significant in a series of archaeological finds made at the mouth of the Miami River in the past 25 years that include the Miami Circle National Historic ...
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 ...