1, caustic soda is sodium hydroxide, inorganic compound, chemical formula NaOH, also known as caustic soda, solid alkali, caustic soda, caustic soda. Sodium hydroxide is strongly alkaline and corrosive, and can be used as acid neutralizer, complexing masking agent, precipitant, precipitation masking agent, color developing agent, saponifying agent, stripping agent, detergent, etc. , and is widely used.

2. There are two methods for industrial production of sodium hydroxide: causticization and electrolysis. Soda causticization can be divided into soda causticization and natural causticization according to different raw materials. Electrolysis method can be divided into diaphragm electrolysis method and ion exchange membrane method.

3, the staff should do a good job of protection, if accidentally touch the skin and eyes, should immediately rinse with plenty of water. The working environment should be well ventilated. Sodium hydroxide aqueous solution has a satiny feeling, and when it is dissolved in water, it produces high heat. Wear protective eyepiece and rubber gloves when operating, and be careful not to splash on skin or eyes.