Sodium citrate by 4mular, renowned for its pure ingredients and superb quality among professional chefs in the restaurant/foodservice industry. The sodium salt of citric acid. Like citric acid, it has a sour taste. Like other salts, it also has a salty taste. It is commonly known as sour salt and is mainly used as a food additive, usually for flavor or as a preservative. It gives club soda both its sour and salty flavors. It reduces the acidity of foods, so it allows spherification with strongly acidic ingredients. It dissolves easily and acts instantaneously.