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Liquid caustic soda and caustic soda are commonly used chemical raw materials, and their differences lie in their physical properties, preparation methods, and application fields

Liquid caustic soda, also known as molten caustic soda, is a colorless and odorless liquid with the chemical formula NaOH. It has high solubility and conductivity, and can absorb moisture. Liquid caustic soda is widely used in glass manufacturing, textile industry, leather industry, and other fields. It can be used as a cleaning agent during glass processing, effectively removing dirt on the surface of glass. In addition, liquid caustic soda can also be used for the sizing and washing of textiles, as well as for the depilation and neutralization of leather

Soda, also known as solid caustic soda, is a solid crystal that appears in the form of white particles with the chemical formula NaOH. Compared with liquid caustic soda, caustic soda has lower solubility and does not possess the hygroscopic properties of liquid caustic soda. Caustic soda is mainly used in soap manufacturing, papermaking industry, metallurgical industry, and other fields. In the process of soap manufacturing, caustic soda is an important raw material that can undergo saponification reaction with animal and plant fats to produce soap. In the papermaking industry, caustic soda is used for bleaching and removing impurities from pulp. In addition, caustic soda can also be used for processes such as ore extraction and neutralization of acid media

In addition to differences in physical properties and application fields, there are also differences in the preparation methods of liquid caustic soda and caustic soda. The preparation methods of liquid caustic soda mainly include electrolysis, chlor alkali method, and seawater purification method. Among them, electrolysis is the most commonly used method for preparing liquid caustic soda, which is obtained by electrolyzing saturated sodium chloride solution. The preparation methods of caustic soda mainly include chlor alkali method, stone alkali method, and ammonia method. Among them, the chlor alkali method is the most commonly used method for preparing caustic soda, which is produced by electrolysis of sodium chloride solution

In summary, the difference between liquid caustic soda and caustic soda is mainly reflected in their physical properties, preparation methods, and application fields. Liquid caustic soda is suitable for fields such as glass manufacturing, textile industry, and leather industry, and can be used as a cleaning agent, sizing agent, and hair removal agent. And caustic soda is suitable for soap manufacturing, papermaking, and metallurgical industries, mainly used for saponification reactions, bleaching, and impurity removal processes. Understanding the difference between liquid caustic soda and caustic soda can help to better select suitable raw materials, improve production efficiency and product quality.