TY - JOUR
T1 - Kinetics of solution crystal growth of strengite, FePO4,2H2O
AU - Lundager Madsen, Hans E.
AU - Koch, Christian Bender
PY - 2018
Y1 - 2018
N2 - 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.
AB - 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.
KW - A1. Surface processes
KW - A2. Growth from solutions
KW - B1. Iron compounds
KW - B1. Minerals
KW - B1. Phosphates
U2 - 10.1016/j.jcrysgro.2017.10.014
DO - 10.1016/j.jcrysgro.2017.10.014
M3 - Journal article
AN - SCOPUS:85032739270
SN - 0022-0248
VL - 482
SP - 9
EP - 14
JO - Journal of Crystal Growth
JF - Journal of Crystal Growth
ER -