The synthesis of hydroxyapatite through the precipitation method.
Hydroxyapatite (HA) has been earmarked as suitable for implantation within the human of its chemical makeup to human bone. In this paper, HA powders were synthesized via the precipitation method where phosphoric acid (H3PO4) was titrated into calcium hydroxide solution [Ca(OH)2]. Two parameters such as temperature and stirring rate were identified as factors that influenced the amount and purity of HA powder. Phase identification of the synthesized powder was done using X-Ray Diffraction (XRD). The results show that HA phase can be synthesized from this titration process of Ca(OH)2 and H3PO4 with yield amount of HA powder around 45 - 61 grams but with less than hundred percent purity. In order to study the effect of heat treatment to HA crystals structure, HA powder was calcined at 850 degrees C for 2 hours. It's found that the degree of crystallinity increases after calcination because of lattice expansion when the materials were heated at higher temperature
Shah
Rizal K
RK
School of Material and Mineral Resources Engineering USM, Engineering Campus Seri Ampangan, 14300 Nibong Tebal, Seberang Perai Selatan, Pulau Pinang.
Fahmi
M N
MN
Mat
Akil H
AH
Zainal
Arifin A
AA
D001672:Biocompatible Materials / Q000138:chemical synthesis*; D002126:Calcium Hydroxide; D011232:Chemical Precipitation; D017886:Durapatite / Q000138:chemical synthesis*; D006801:Humans; D010756:Phosphoric Acids; D014961:X-Ray Diffraction
D001672:Biocompatible Materials; D010756:Phosphoric Acids; D017886:Durapatite; C030242:phosphoric acid; D002126:Calcium Hydroxide