A physicochemical study on organic eutectics and addition compound; benzidine–pyrogallol system

Abstract

U. S. RAI and SANTHI GEORGE. Can J. Chem. 70, 2869 (1992.The phase diagrams of the binary organic system of benzidine-pyrogallol was determined by the thaw-melt method. The solidification behaviour of the pure components, their eutectics, and the addition compound were studied by measuring the movement of growth front in a capillary. From the data on X-ray diffraction, thermal and microscopic investigations it can be inferred that the eutectics are not simple mechanical mixtures of the components involved. The IR and NMR spectral investigations were canied out to throw light on the nature of bonding between the two components forming the addition compound.U. S . RAI et SANTHI GEORGE. Can. J. Chem. 70, 2869 (1992.Faisant appel a la mCthode de fusion, on a determine les diagrammes de phase du systkme organique binaire benzidine/pyrogallol. En mesurant le mouvement de croissance du front dans la capillaire, on a CtudiC le comportement lors de leur solidification des composants purs, de leurs eutectiques et de leur composC d'addition. En se basant sur des Ctudes thermiques, microscopiques et de diffraction des rayons X, on peut dCduire que les eutectiques ne sont pas de simples melanges des composants impliquCs. Des etudes par spectroscopies IR et RMN ont CtC entreprises afin de faire la lumikre sur la nature des liaisons entre les deux composants formant le composC d'addition.[Traduit par la rCdaction]

Binary Phase Behavior of Diacid 1,3‐Diacylglycerols

“…ibuprofen and stearic acid [14]), the production and properties of fabrics and polymers (e.g. cellulose solvent and water mixtures [15]) and several illustrative eutectic systems [16][17][18][19].…”