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Hydroxyapatite Nano and Micron Powder

Hydroxyapatite is a calcium phosphate compound, its formula is Ca 10  (PO 4 ) 6 (OH) 2 . It is a part of the raw material, called phosphoric rock. The term hydroxy refers to the anion OH ‑ . If instead of that anion is replaced with fluoride, the mineral would be called Fluoroapatite Ca 10  (PO 4 ) 6 (F) 2 . Hydroxyapatite is the main inorganic component of the bones and dental enamel. Hydroxyapatite predominantly exists in two forms which are nanoHydroxyapatite powder and micron Hydroxyapatite powder. The difference between the two is of size. The size of  Hydroxyapatite nanoparticles  is below 200 nm whereas  micron Hydroxyapatite  exists in the range of 45 – 90 micron. The surface area for Hydroxyapatite nanoparticles is around 9.4 m 2 /g whereas  Hydroxyapatite micron powder  has a surface area of 120 m 2 /g. History and importance of Hydroxyapatite The use of Hydroxyapatite began after 1950 when after a lot of research, it was found ...