Learn about tartaric acid , a carboxylic acid found in fruits and vegetables, with a chemical formula C 4 H 6 O 6. Discover its properties, structure, uses, and FAQs in this article by BYJU'S Chemistry. Tartaric acid is a white crystalline organic acid that occurs naturally in many plants, most notably in grapes.Tartaric is an alpha-hydroxy-carboxylic acid, is diprotic and aldaric in acid characteristics, and is a dihydroxyl derivative of succinic acid. Discover tartaric acid ’s properties, structure, and uses. Master this key chemistry topic with expert tips from Vedantu. Start learning now! Tartaric acid is an organic substance that occurs naturally in various plants, fruits and wine. People have used it for many years in different ways. Commercially, the food industry uses it as an additive and flavoring agent, and it is also employed in industries such as ceramics, textile printing, tanning, photography and pharmaceuticals.