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[Chemical Knowledge]：What are the upstream raw materials for sodium chloride? What do the downstream products contain?

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Sodium chloride, also known as table salt, is an important raw material in the production of chemicals. Its upstream and downstream related products are numerous, some of which are described in detail below.

1. upstream product

sodium chloride upstream products are mainly salt ore and sea water. Rock salt or natural salt from salt mines, as well as sea salt obtained by evaporation of seawater, are the main sources of sodium chloride. After these raw materials are processed, sodium chloride can be obtained for chemical production.

2. Downstream product

(1) Caustic soda and chlorine

Caustic soda (sodium hydroxide) and chlorine can be obtained by electrolysis of sodium chloride aqueous solution. This is one of the most important downstream products of sodium chloride. Caustic soda is widely used in chemical industry, papermaking, textile, food and other fields, while chlorine gas is mainly used in the production of PVC, bleach and so on.

(2) hydrochloric acid

sodium chloride can react with sulfuric acid to produce hydrochloric acid and sodium sulfate. Hydrochloric acid is widely used in industrial cleaning, food processing, leather processing and other fields.

(3) Sodium hypochlorite

Sodium chloride can be electrolyzed to generate sodium hypochlorite, which is an important bleaching agent and disinfectant, widely used in water treatment, pulp bleaching and other fields.

(4) Sodium Metal

Sodium metal can be obtained by electrolytically melting sodium chloride. Metal sodium has important applications in the manufacture of alloys and sodium compounds.
above
is only a part of the upstream and downstream related products of sodium chloride. In fact, sodium chloride is widely used in chemical production, and there are many kinds of upstream and downstream products.

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