Hydrogen telluride
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| Hydrogen telluride | |
|---|---|
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| General | |
| Systematic name | hydrogen telluride |
| Other names | hydrotelluric acid tellane tellurium hydride |
| Molecular formula | H2Te |
| Molar mass | 129.6158 g mol−1 |
| Appearance | colourless gas |
| CAS number | [] |
| Properties | |
| Density and phase | 3.310 g/l, gas. |
| Solubility in water | 0.70 g/100 mL |
| Melting point | −51 °C |
| Boiling point | −4 °C (unstable above 0 °C) |
| Acidity (pKa) | ? |
| Structure | |
| Molecular shape | planar |
| Dipole moment | ? D |
| Hazards | |
| MSDS | External MSDS |
| Main hazards | toxic |
| NFPA 704 | ? |
| Flash point | ? °C |
| R/S statement | R: ? S: ? |
| RTECS number | |
| Supplementary data page | |
| Structure and properties |
n, εr, etc. |
| Thermodynamic data |
Phase behaviour Solid, liquid, gas |
| Spectral data | UV, IR, NMR, MS |
| Related compounds | |
| Other group 16 hydrogen compounds |
H2O H2S H2Se H2Po |
| Other tellurides | Na2Te Ag2Te |
| Related compounds | ? |
| Except where noted otherwise, data are given for materials in their standard state (at 25°C, 100 kPa) Infobox disclaimer and references |
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Hydrogen telluride is the chemical compound with the formula H2Te. It is the simplest hydride of tellurium.
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[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] See also
[edit] External links
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