1. Glass Manufacturing

As a key fluxing agent, it significantly lowers the melting point of silica, saving energy, and helps remove impurities. It is one of the main raw materials for flat glass and bottle glass.

2. Chemicals and Detergents

Used in the production of various chemical products (such as silicates and phosphates), it is an important component in soaps and synthetic detergents, enhancing cleaning power and softening water.

3. Textile Dyeing and Printing

Used as a dyeing assistant and cleaning agent in the dyeing and printing industry, it helps adjust the pH of the dye bath and removes grease and impurities from fabrics.

4.食品工业

As a food additive (INS 500(i)), it is mainly used as an acidity regulator, leavening agent, and processing aid, and can be used in certain fermented foods and confectionery.

5. Water Treatment and Environmental Protection

Used to adjust the pH of water, soften water (removing calcium and magnesium ions), and prevent scaling; it can also be used to neutralize acidic wastewater and remediate acidified soil.

6. Laboratory and Analytical Chemistry

Used as a reference substance for titrating acids; used in various analytical tests such as metallographic analysis of metals and glucose testing; also used in chromatography and protein separation techniques.

7. Other Industries

It is also used in papermaking (pulping), metallurgy (as a flux), ceramics, pharmaceuticals, and other fields.