... The dopands impact on the topochemical phase transformation of calcium sulphate half-hydrate to dihydrate in granuls . Abstract It was studied experimentally copper, cobalt , molybdenum salts and other dopands influences on the topochemical phase transformation of calcium sulphate half-hydrate to dihydrate in granuls. ... Moscow University Chemistry Bulletin . 2004, Vol. ... 3, P. 204 . Copyright (C) Chemistry Dept., ... Copyright (C) Chemisty Department of Moscow State University . ...