There are two asymmetric carbon atoms in tartaric acid molecule so tartaric acid consists of three optical isomers, namely the right spin tartaric acid, D - tartaric acid or left handed tartaric acid or L - tartaric acid, and meso tartaric acid. DL-Tartaric Acid ,also called racemic tartaric acid, is the compound of equivalent D-tartaric acid and L+tartaric acid. DL-Tartaric Acid is colorless crystals or white power, with sour taste. DL-Tartaric Acid is an important auxiliary agent and reducing agent. It can control the formation of silver mirror speed and get very uniform coating.
Generally speaking, DL-Tartaric Acid is widely used in food, medical, chemical and light industry such as being used as beer foaming agent, food acidulant and corrigent. DL-Tartaric Acid is an important auxiliary agent and reducing agent. It can control the formation of silver mirror speed and get very uniform coating. As food add antioxidant, DL-Tartaric Acid can make the food have a sour taste.