Used as a buffer, chelating agent, stabilizer, antioxidant, emulsifier, flavoring agent, etc. in the food industry. It can be used in milk and dairy products, jelly, jam, meat, canned hydrogel snacks, cheese emulsification, citrus preservation, etc.; in the pharmaceutical industry for hypokalemia and potassium deficiency and alkalized urine. It can also be made into high-efficiency compound fertilizer, and can also be used in papermaking, gold plating and other industries.