occurs in nature either in the free state or in combination with potassium and calcium as tartrates, in many vegetable juices such as tamarinds, girkins, mulberries, pineapples, and more particularly in grape iuice in combination as acid tartrate of potassium. It is readily prepared in a crystalline state irom the lastnamed substance or crude argols. Tartaric acid crystallizes in large prisms, which are soluble in water. It fuses at 170 degrees C.; is decomposed at 180 degrees C.; and is used in calicoprinting as a solvent for the mordant and finds applications in medicine. Tartaric acid is known in four distinct modifications.

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Definition of  TARTARIC ACID