malonIc

[English mal ( ic ), and probably (ket)on(e); suff. -ic.] CO-OH An acid pro Chem.: C3H4O4=CH2-COOH duced by the action of alkalies on cyan acetic ether, or by carefully oxidizing malic acid, with a cold solution of pota ic dichromate. It crystallizes in large rhombohedral crystals, easily soluble in water and alcohol; melting at 132°, decomposing at 145° into carbonic anhydride and acetic acid. The alkali salts, only of this acid, are easily soluble in water. The baric salt, CH2: (COO)2Ba, H2O, crystallizes in groups of needles, sparingly soluble in cold water. The silver and lead salts are crystal line, but quite insoluble in water.