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[Chemical Knowledge]：Differences and Uses of White Stone Soda and Soda Ash

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White stone alkali and soda ash are common alkali compounds, they have important applications in many aspects. However, there are some differences in chemical properties, production processes and uses.

the chemical properties of white stone alkali and soda ash are different. White stone alkali, also known as caustic soda, chemical formula is NaOH. It is a colorless, odorless solid that dissolves in water to produce a strongly alkaline hydroxide ion and the corresponding sodium ion. White stone alkali solubility in water is high, can quickly neutralize the reaction with the acid in the solution. Soda ash, chemical formula Na2CO3, also known as sodium bicarbonate. It is a white crystalline solid with high solubility. After the soda ash is dissolved, the carbonate ion and the corresponding sodium ion are produced, showing moderate alkalinity. The preparation process of

whitestone and soda ash is also different. White stone alkali is mainly prepared by sodium chloride electrolysis, that is, sodium chloride is used as raw material through electrolytic reaction. Soda ash is mainly prepared by the reaction of sodium chloride and ammonia, the reaction generates sodium bicarbonate, and then decomposed by heating to generate soda ash. Both processes require high temperatures and special equipment, and some by-products are produced.

whitestone and soda ash are also different in the field of application. As a strong alkali, Baishi alkali is widely used in metallurgy, petrochemical, textile, paper, pharmaceutical and other industrial fields. In metallurgy, whitestone alkali is used as a desulfurizer in aluminum smelting and steelmaking processes. In pharmaceuticals, it is used to produce a variety of pharmaceutical raw materials. Soda ash is mainly used in glass manufacturing, detergent production and water treatment and other fields. In glass manufacturing, soda ash is used as the main raw material for the glass component; in detergents, soda ash can be used for decontamination and pH adjustment; in water treatment, soda ash can be used for softening water quality.

In summary, there are differences in chemical properties, preparation processes and applications between white stone and soda ash. Understanding their characteristics and uses will help us to correctly select and apply alkali compounds to make them work best.

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