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hydrogen chloride

noun

  1. a colorless gas, HCl, having a pungent odor: the anhydride of hydrochloric acid.


hydrogen chloride

noun

  1. a colourless pungent corrosive gas obtained by the action of sulphuric acid on sodium chloride: used in making vinyl chloride and other organic chemicals. Formula: HCl
  2. an aqueous solution of hydrogen chloride; hydrochloric acid
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012


hydrogen chloride

  1. A colorless, corrosive, suffocating gas used in making plastics and in many industrial processes. When mixed with water, it forms hydrochloric acid. Chemical formula: HCl.


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Word History and Origins

Origin of hydrogen chloride1

First recorded in 1865–70
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Compare Meanings

How does hydrogen chloride compare to similar and commonly confused words? Explore the most common comparisons:

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Example Sentences

Hydrogen chloride, subjected to great pressure at a low temperature, is liquefied.

A solution of hydrogen chloride in a poorly ionizing medium, like benzene or toluene, is an extremely poor conductor.

For example, the acid formed by hydrogen and chlorine is termed hydrochloric acid (and sometimes hydrogen chloride).

On being heated, ammonium chloride dissociates into ammonia and hydrogen chloride.

In the case of hydrogen bromide and water, and of hydrogen chloride and water, a hydrate, viz.

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hydrogen carbonatehydrogen cyanide