Procedure for Calculating the Standard Gibbs Potentials of Minerals of the Class of Uranoarsenates

Linear programming is used to decompose potentials with respect to oxide components for a series of synthetic compounds of uranoarsenates of different metals, based on standard Gibbs energies of formation (ΔfG°) from the elements. The resulting system of additive contributions is used to calculate unknown ΔfG° of minerals of the class of uranoarsenates.