Kinetics of solution crystal growth of strengite, FePO4,2H2O
Research output: Contribution to journal › Journal article › peer-review
The iron(III) phosphate strengite, FePO4,2H2O, has been precipitated at 25 °C by mixing solutions of iron alum and ammonium phosphate. The rate of crystallization has been determined by pH recording. Three stages of crystal growth kinetics could be distinguished: (1) mononuclear growth, (2) polynuclear growth and, in a few cases, (3) spiral growth (BCF mechanism). From the first two, the value of edge free energy λ = 87 ± 1 pJ/m was found. The identity of the precipitate was verified by SEM, XRD and Mössbauer spectroscopy.
|Journal||Journal of Crystal Growth|
|Number of pages||6|
|Publication status||Published - 2018|
- A1. Surface processes, A2. Growth from solutions, B1. Iron compounds, B1. Minerals, B1. Phosphates