Sodium diacetate, which is developed by our institute in recent years, is used in food and drink additive and has the efficacy of antisepsis, protecting freshness, increasing nutrition value, enhancing livestock appetite and increasing dairy cattle output, etc.. It can be used as preservative in crops including corn, wheat, rice, peanut, bean, etc.. In addition, the application of sodium diacetate in other industry areas such as dye industry, light industry, chemical industry for daily use is gradually extending. Domestic demand has reached to about 50,000 tons.