PHYSICO-CHEMICAL STUDIES OF COMPLEX FORMATION BETWEEN MOLYBDIC ACID AND TARTARIC ACID. PART I. POLARIMETRIC STUDIES

The complex formation between tartaric and molybdic acids in solution has been studied polerimetrically. The reaction is shown to be governed by an equilibrium of the type \(H_2MoO_4 + H_2T \rightleftharpoons H_2(MoO_3 T, H_2O)\) and the equilibrium constant \(K(=1.03 X 10^3)\) has been calculated. The reaction goes to completion when the concentration of one of the components is 4 times the other. The possible causes for exalted rotation and other peculiarities have been discussed and a probable constitution of the complex compound is given in keeping with the co-ordination theory of valency