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

Table 3

Reported results in recent scientific papers using the hydrothermal method to synthesis hydroxyapatite.

Author	Year	Reagents	Method	Phase	pH	Temperature synthesis	Morphology
Arantes et al. [31]	2018	CaCl2 and (NH4)2HPO4	Hydrothermal	Hexagonal	9	100-140°C	Rods
Hoai et al. [32]	2017	Na2HPO4 and CaCl2	Hydrothermal	Hexagonal	—	180°C	Rods
Yang et al. [10]	2014	CaCl2 and Na5P3O10, STTP	Hydrothermal	Hexagonal	—	180°C	Rods and semispherical
Zhu et al. [33]	2018	Ca(NO3)2·4H2O and (H3PO4)	Hydrothermal	Hexagonal	8, 10 and 12	200°C	Rods