Science students must have understood a lot about hydrochloric acid during school. In chemistry class, the occurrence rate of hydrochloric acid is also quite high. As the most common class of materials in modern industrial materials, melamine and hydrochloric acid are in many industries. After being applied, hydrochloric acid manufacturers have also developed rapidly with the huge market demand, but many people still don't know how the industrial hydrochloric acid with a wide range of uses is produced. The hydrochloric acid manufacturer-Dongming Chemical will show you:
Industrially, the preparation method of hydrochloric acid is electrolytic method, the steps are as follows:
1.1. The saturated salt water is electrolyzed. Except for sodium hydroxide, the cathode produces hydrogen and the anode produces chlorine.
The equation is as follows: 2NaCl + 2H2O → 2NaOH + Cl2 ↑ + H2 ↑
2. Pass hydrogen gas and chlorine gas to a quartz burner in the reactor to ignite and burn, generating hydrogen chloride gas, and emitting a lot of heat.
H2 + Cl2 → 2HCl
3.The hydrogen chloride gas is absorbed into water and becomes hydrochloric acid after cooling.