hydrogen bromide
hydrogen bromide
hydrogen bromide
hy′drogen bro′mide
n.
| Noun | 1. | hydrogen bromide - a colorless gas that yields hydrobromic acid in solution with water |
| 单词 | hydrogen bromide | |||
| 释义 | hydrogen bromidehydrogen bromidehydrogen bromidehy′drogen bro′miden.
Hydrogen Bromidehydrogen bromide[′hī·drə·jən ′brō‚mīd]Hydrogen Bromide(HBr), a compound of hydrogen and bromine. It is a colorless gas with a sharp odor and acidic taste; Tb = -68.7° C, Tm = -87.9° C. At 10° C approximately 350 volumes of hydrogen bromide dissolves in 1 volume of water. An aqueous solution of hydrogen bromide is called hydrobromic acid. This is a colorless liquid (sometimes yellowish owing to the presence of traces of bromine) with a sharp odor. An azeotropic mixture with a boiling point of 124.3° C forms at a concentration of 47.6 percent HBr. Hydrobromic acid is one of the strongest mineral acids. In industry hydrogen bromide is obtained by the reaction of bromine vapors with hydrogen at a high temperature. The reaction temperature can be reduced by using a catalyst, activated charcoal, or platinized asbestos. Hydrogen bromide can be obtained in the laboratory by treating bromides with 50-percent sulfuric acid (more concentrated acid partially oxidizes HBr to Br2) and by other methods. Hydrogen bromide is used to obtain bromides and organic bromine derivatives and for other purposes. hydrogen bromidehy·dro·gen bro·midehydrogen bromide
Words related to hydrogen bromide
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