Joseph, K.V.Potty, V.P.Jayasankar, N.P.2014-06-042014-06-042007-02-08J.Plantn.Crops 1974 v-2 i-1 p-1-4http://hdl.handle.net/123456789/2376Pyrogallol in the 5-20 jug range has been estimated colorimetrically in acetic acid after treatment with paradimethyl amino benzaldehyde and sulphuiic acid. Some factors affecting the formation of colour have been studied.enpyrogallolestimationcolorimetryArticle