Hydrogen telluride
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Hydrogen telluride | |
---|---|
IUPAC name | hydrogen telluride |
Other names | hydrotelluric acid tellane tellurium hydride |
Identifiers | |
CAS number | [7783-09-7] |
Properties | |
Molecular formula | H2Te |
Molar mass | 129.6158 g mol−1 |
Appearance | colourless gas |
Density | 3.310 g/l, gas. |
Melting point |
−51 °C |
Boiling point |
−4 °C (unstable above 0 °C) |
Solubility in water | 0.70 g/100 mL |
Structure | |
Molecular shape | bent |
Hazards | |
Main hazards | toxic |
Related compounds | |
Other anions | H2O H2S H2Se H2Po |
Other cations | Na2Te Ag2Te |
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox disclaimer and references |
Hydrogen telluride is the chemical compound with the formula H2Te. It is the simplest hydride of tellurium.
Contents |
[edit] Physical description
Most compounds with Te-H bonds are unstable with respect to loss of H2, and H2Te follows this pattern. H2Te is chemically similar to hydrogen selenide, both are reactive, acidic species with H-X-H angles approaching 90°.
[edit] Synthesis
H2Te is prepared by the acidification of salts of Te2−, such as Al2Te3 and Na2Te. Na2Te can be generated by the reaction of Na and Te in anhydrous ammonia.
[edit] Popular culture
The strong, unpleasant odour of H2Te was remarked upon in a scene in the Doctor Who serial The Krotons (1968/9), when it was described as "the worst smell in the world".
[edit] See also
[edit] References
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