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What are the physical properties of industrial hydrochloric acid

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What are the physical properties of industrial hydrochloric acid

作者: Release Date: 2019-09-18 Author: Click:

Compared with laboratory hydrochloric acid, industrial hydrochloric acid is yellowish. Because industrial hydrochloric acid is generally produced by burning chlorine gas in hydrogen, and then absorbing the generated hydrogen chloride with water. For melamine , a special combustion tube is used when synthesizing hydrogen chloride. This tube consists of two concentric steel tubes (steel is an alloy of iron). The inner tube is led with chlorine and the outer tube is led with hydrogen. Because this tube is an iron alloy, and chlorine gas is highly oxidizing, at the same time that hydrogen chloride is generated, the iron in the steel pipe also reacts with chlorine gas to form ferric chloride, which will make the solution appear yellow when dissolved in water.

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