Hydrogen Chloride - Properties, Early Discovery Of Hydrogen Chloride, Preparation And Uses
acid hydrochloric
Hydrogen chloride is a chemical compound composed of the elements hydrogen and chlorine. It readily dissolves in water to produce a solution called hydrochloric acid. Both substances have many important industrial applications, including those in metallurgy, and the manufacture of pharmaceuticals, dyes, and synthetic rubber. Hydrochloric acid is found in most laboratories since its strong acidic nature makes it an extremely useful substance in analyses and as a general acid. Because hydrogen chloride and hydrochloric acid are so closely related, they are usually discussed together.
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Hydrogen chloride is represented by the chemical formula HCl. This means that a molecule of hydrogen chloride contains one atom of hydrogen and one atom of chlorine. At room temperature (about 77°F [25°C]) and at a pressure of one atmosphere, hydrogen chloride exists as a gas. Consequently it is generally stored under pressure in metal containers. A much more convenient way to use hy…
The alchemists of medieval times first prepared hydrogen chloride by heating ordinary salt ( sodium chloride) with iron sulfate. The German chemist Johann Glauber (1604-1668) made hydrogen chloride by the reaction of salt with sulfuric acid, and this became the common method for conveniently preparing hydrogen chloride in the laboratory. By passing hydrogen chloride gas into water, hydrochloric ac…
Hydrogen chloride can be prepared on an industrial scale from the reaction of salt with sulfuric acid. It is also formed rapidly above 482°F (250°C) by direct combination of the elements hydrogen and chlorine, and it is generated as a by-product during the manufacture of chlorinated hydrocarbons. Hydrochloric acid is obtained by passing hydrogen chloride gas into water. Both hydrogen…
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