a. Chem. [f. TARTR(O- + AM(MONIUM) + -IC.] In tartramic acid, C4H7NO5, an amidated derivative of tartaric acid. Its salts are Tartramates. Also tartramic ether, a name of ethylic tartramate, obtained by the action of alcoholic ammonia on tartaric ether; also called Tartramethane.

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1857.  Miller, Elem. Chem., III. 318. It is they [the dibasic acids] only that can furnish the amidated acids, such as the oxamic, tartramic, and lactamic acids.

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1868.  Watts, Dict. Chem., V. 697. Tartramate of calcium … is very soluble in water … and forms large tetrahedral crystals.

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