The pH Effect on the Growth of Hexagonal and Monoclinic Hydroxyapatite Synthesized by the Hydrothermal Method

Table 1

Weight percent and crystallite size of monoclinic and hexagonal phases present in all synthesized samples.

pH	Hexagonal (wt%)	Monoclinic (wt%)	Hexagonal crystallite size (nm)	Monoclinic crystallite size (nm)
10	5.65	94.35	41.73	28.90	1.02
9.6 (ipH)	17.36	82.64	40.86	46.70	1.27
9	4.67	95.33	13.11	27.36	1.06
8	4.01	95.99	10.31	22.32	1.09
7	2.58	97.42	15.51	19.56	1.14