Some thermodynamic characteristics of uranyl haloacetates and their crystal hydrates

Data on the values of the standard heats of formation of a number of uranyl carboxylates and their crystal hydrates, as well as the corresponding acids and their anions in the gaseous state, have been presented. A thermochemical cycle has been proposed, and a calculation of the lattice heats of the uranyl carboxylates indicated has been carried out. The errors of the tabulated values and the values obtained have been discussed. It has been shown that the main contribution to the changes in the lattice heats in the series under consideration is determined by the changes in the electron-donor ability of the anion