Abstract:
The article presents a range of issues related to the peculiarities of brushite crystallization in the presence of
additives based on thermodynamic calculations and experimental data. The authors studied the regularities of
phase formation in the system of Ca2+ – HPO4
2- – H2O, an additive in a broad range of variation of concentrations
of components and pH. The effect of silicate-, fluoride-, chloride- and hydrocarbonate-ions on the precipitation
and the composition of the crystallizing phase was investigated. It was found that brushite and other
calcium phosphates co-precipitate from the original system. Studying the influence of organic additives, it has
been established that their presence leads to the precipitation of brushite admixed with apatite phase.
