Studies on Haematoxylin and Haematein, the Colouring Principles of Logwood
- 1 November 1962
- journal article
- Published by Wiley in Journal of the Society of Dyers and Colourists
- Vol. 78 (11) , 549-551
- https://doi.org/10.1111/j.1478-4408.1962.tb02465.x
Abstract
A method of preparing deaerated aqueous solutions of haematein for kinetic studies is described. By means of solutions prepared by this method, the kinetics of the fading of haematein in aqueous solution have been studied at 25·1°C. Equilibrium is approached by a first‐order reaction which is catalysed by acid. The equilibrium constant at 25·1°C is 8·0; it decreases as the temperature increases.This publication has 3 references indexed in Scilit:
- Studies on Haematoxylin and Haematein, the Colouring Principles of LogwoodJournal of the Society of Dyers and Colourists, 1959
- Studies on Haematoxylin and Haematein, the Colouring Principles of Logwood: I–Absorption Spectra of Pure Compounds in Various Solvents and a Spectrophotometric Method of Analysis for Haematoxylin and HaemateinJournal of the Society of Dyers and Colourists, 1959
- CXI.—Brazilin, haematoxylin, and their derivatives. Part IX. On brazilein, haematein, and their derivativesJournal of the Chemical Society, Transactions, 1908