... a white crystalline diprotic organic acid. It occurs naturally in many plants, particularly grapes, bananas, ItemLimitResult ... % Max<0.0001% Loss on Drying0.5% Max0.3%Tartaric acid is a white crystalline . It occurs naturally in many plants ... sour taste, and is used as an . Salts of tartaric acid are known as . It is a di derivative of .