Collidinic acidB. Chatterjee: Donor properties of pyridine carboxylic acids: chromium(III) complexes, in: Journal of Inorganic and Nuclear Chemistry, Band 43, Nr. 10, 1981, S. 2553–2555; doi:10.1016/0022-1902(81)80300-4.Raymond L. Richards: Vanadium: Inorganic & Coordination Chemistry, in: Encyclopedia of Inorganic and Bioinorganic Chemistry, 2011; doi:10.1002/9781119951438.eibc0236. (pyridine-2,4,6-tricarboxylic acid) is an organic compound that belongs to the heterocycles (more precisely the heteroaromatics). It belongs to the group of pyridinetricarboxylic acids and consists of a pyridine ring which carries three carboxy groups in the 2-, 4- and 6-positions. The name is derived from 2,4,6-collidine (2,4,6-trimethylpyridine).
Preparation The compound can be obtained from the oxidation of 2,4,6-collidine by potassium permanganate.
Uses Collidinic acid can be used in the spectrophotometric determination of iron.
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