1. It is used as a scale inhibitor and dispersant in industrial water treatment. It has good compatibility. It can also be used for pre-treatment of drinking water. It is used to separate red mud in the production of alumina. It is used to purify brine in chlor-alkali plants and is mostly used in the manufacture of cosmetics. When used as a base for ointments, it can promote the absorption of gray-yellow mold and can also be used for drug controlled release. It is used in the preparation of leather and certain high-end products' finishing agents, and in the production of acrylic resin paints, etc. It is used for fixing chromium salts, aiding tanning, reducing chromium pollution, etc. It is used to improve the processing performance of polyvinyl chloride. It is used as a corrosion inhibitor, water quality stabilizer, quenching agent, thickener, etc. It is used as a leather finishing filler, textile sizing agent and water quality stabilizer. It is used for the manufacture of acrylic resin paints. It can be used as a film-forming agent and adhesive in leather finishing agents, and is also used for the production of polyacrylic resin latex paints, etc. It is widely used in the decoration of face leather, clothing leather, glove leather and other light leathers, which can enhance the flexibility, extensibility, light resistance, aging resistance, cold resistance and heat resistance of the leather. It is the main film-forming agent for modifying grain surface leather when used in conjunction with pigment paste. 2. It can be used as an excellent dispersant, emulsifier, transparent base for high-grade cosmetics and auxiliary base for drugs. It is also the most effective water-soluble thickener. It is also used in toothpaste as a thickening agent and adhesive. It can be used in combination with other polymers. 3. It is a commonly used dispersant that can disperse the microcrystals or silt of salts such as calcium carbonate and calcium sulfate into water without precipitation, thereby achieving the purpose of scale inhibition. Besides being used as a scale inhibitor dispersant in the circulating cooling water system, it is also widely used in the papermaking and textile, printing and dyeing, ceramics, coating, etc. industries. 4. It is applied in water treatment of industries such as chemical engineering, fertilizer, printing and dyeing, power generation, etc.