Tartaric acid is a white crystalline organic acid. It occurs naturally in many plants, particularly grapes, bananas, and tamarinds, and is one of the main acids found in wine. It is added to other foods to give a sour taste, and is used as an antioxidant. Salts of tartaric acid are known as tartrates. It is a dihydroxy derivative of succinic acid.
Tartaric acid is widely used as a beverage, and other food sour agent, used for wine, soft drinks, candy, bread, some colloidal sweets. Mainly as sour agent, split agent and the raw material for medicine.