... We are specialized in producing DL-tartaric acid.Our products has been exporting to many ... quantity of dextro-rotatory and levo-rotatory tartaric acid,containing one or two molecule crystalline water and ... light industry,etc.Mainly used in manufacture tartaric acid salts,such as potassium sodium tartrate,and can ... It's acidity is 1.3 times as citric acid,so especially as acidifying agent for grape juice. ...