Sodium Citrate is a sodium salt of citric acid with the formula C6H5Na3O7. Here is a description of sodium citrate and some common uses:

Description: 

•Chemical properties: Sodium citrate is a white crystalline solid, soluble in water. It has a sour and salty taste.

•Production Method: Sodium citrate can be prepared by reacting citric acid with sodium hydroxide.

Purpose: 

1. Food additive: Sodium citrate is a common food additive, widely used in food and beverage manufacturing. It can be used as an acid agent, acidity regulator, antioxidant and emulsifier. Sodium citrate can increase the acidity of foods and beverages, improve the taste, and extend the shelf life of foods. It is often used in carbonated beverages, fruit juices, jams, candy, cans, dairy products, condiments and other foods and beverages.

2. Anticoagulant: Sodium citrate is used as an anticoagulant in the medical field. It prevents blood from clotting and is often used in hemodialysis and blood preservation.

3. Pharmaceutical preparations: Sodium citrate has a certain application in pharmaceutical preparations. It can be used as a buffer and solvent for drugs. Sodium citrate in some drugs can help regulate the acid-base balance of drugs, improve the stability and solubility of drugs.

4. Industrial applications: Sodium citrate is also used in some industrial applications. It can be used in metal cleaning, water treatment, surface treatment and dye industry.