The role of sodium hydroxide, the main component of flake alkali
Sodium hydroxide (the main component of flake alkali), also known as caustic soda, caustic soda, etc., plays an unusual role in our life and production, and is used in the manufacture of pulp, soap, dyes, rayon, aluminum, petroleum refining, cotton fabric finishing , as well as food processing, wood processing and so on. Sodium hydroxide plays an important role in so many aspects, which shows how much sodium hydroxide plays in our life and production.
The role of sodium hydroxide in chemical experiments: In addition to being used as a solution reagent, sodium hydroxide has deliquescence and water absorption capacity, and is a good alkaline desiccant. It can also absorb acid gases such as CO2 (experiment: S O2 = (ignition) SO2, this feature can be used to absorb SO2 gas with sodium hydroxide)
The role of sodium hydroxide in the paper industry: Sodium hydroxide plays an important role in the paper industry. Due to its alkaline properties, it is used in the process of boiling and bleaching paper sheets.
The role of sodium hydroxide in water treatment: Sodium hydroxide is widely used in water treatment. In sewage treatment plants, sodium hydroxide can reduce the hardness of water through a neutralization reaction. In the industrial field, it is a regenerant for the regeneration of ion exchange resins. Sodium hydroxide is strongly alkaline and relatively soluble in water. Because caustic soda is in liquid state, it is easy to measure the dosage and it is conveniently used in various fields of water treatment.
Sodium hydroxide is used in the following subjects in water treatment: water hardness; pH adjustment of water; neutralization of waste water; regeneration of ion exchange resin; by precipitating heavy metal ions in water.
