Croatica Chemica Acta, Vol. 43 No. 4, 1971.
Izlaganje sa skupa
The Nucleation and Growth of Calcium Phosphate Crystals
G. H. Nancollas
; Chemistry Department, State University of New York at Buffalo, Buffalo, New York, U.S.A.
Sažetak
The growth of seed crystals in supersaturated solutions of
calcium phosphate at 25° C is discussed. In the pH range 5-6, the
crystallization of dicalcium phosphate follows a second order rate
equation in a process which is surface reaction rather than· diffusion
controlled. Under physiological pH conditions, the growth
of hydroxyapatite seed crystals proceeds through the formation
of a precursor phase which has a calcium : phosphate ratio of
1.45 ± 0.05 and which attains the HAP composition after slow
interaction with the medium; the process again appears to be
interface controlled.
Ključne riječi
Hrčak ID:
197306
URI
Datum izdavanja:
10.1.1972.
Posjeta: 1.087 *