Hydrogen deuteride
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| Hydrogen deuteride | |
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| Properties | |
| Molecular formula | HD |
| Molar mass | 3.02 g/mol |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox references |
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Hydrogen deuteride is a diatomic molecule composed of the two isotopes of hydrogen: the majority isotope 1H protium and 2H deuterium. Its molecular formula is HD. Hydrogen deuteride is a minor component of naturally occurring molecular hydrogen. In particular it is one of the minor but noticeable components of the atmospheres of all the giant planets, with abundances from about 30 to about 200 ppm.
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