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Crystallization and Characterization of Calcium Phosphates: Brushite and Monetite
Author(s) -
Sivakumar G. R.,
Girija E. K.,
Narayana Kalkura S.,
Subramanian C.
Publication year - 1998
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/(sici)1521-4079(1998)33:2<197::aid-crat197>3.0.co;2-k
Subject(s) - brushite , crystallization , calcium , chemistry , characterization (materials science) , mineralogy , materials science , nanotechnology , organic chemistry
Spherulitic monetite (CaHPO 4 ) and brushite (CaHPO 4 · H 2 O) of different morphologies which have close resemblance to those found in pathological joints, stones and dental calculi were crystallized in silica gel under acidic conditions. These crystals were characterized by x‐ray powder diffraction, fourier transform infra‐red, and thermogravimetric analyses. The molar ratios (Ca/P) were calculated from ICP analysis and found to be in agreement with the theoretical stoichiometric molar ratio. The microstructure of the spherulitic monetite crystals have been studied using scanning electron microscopy.