289396

Hydroxyapatite

powder, synthetic

• Synonym(s): Calcium phosphate tribasic, Calcium hydroxyphosphate, HAp, Hydroxylapatite, Tribasic calcium phosphate
• Linear Formula: [Ca₅(OH)(PO₄)₃]_x
• CAS Number: 12167-74-7
• Molecular Weight: 502.31
• EC Number: 235-330-6
• MDL number: MFCD00010904
• UNSPSC Code: 12352302
• PubChem Substance ID: 57648308
• NACRES: NA.23
• Form: powder; solid
• Solubility: H₂O: insoluble(lit.)

Properties

• Quality Level: 100
• form: powder; solid
• mp: 1100 °C (lit.)
• solubility: H₂O: insoluble(lit.)
• SMILES string: [Ca++].[Ca++].[Ca++].[Ca++].O[Ca+].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O
• InChI: 1S/5Ca.3H3O4P.H2O/c;;;;;3*1-5(2,3)4;/h;;;;;3*(H3,1,2,3,4);1H2/q5*+2;;;;/p-10
• InChI key: XYJRXVWERLGGKC-UHFFFAOYSA-D

Description

General description

Hydroxyapatite is a key inorganic phosphate that has chemical and structural resemblance to bone. HAp is a popular biomaterial which finds use as a bone or teeth replacement and repair, hard tissue repair.

Application

Hydroxyapatite(HAp) was used to model intracranial calcification in a study. HAp forms biocomposites with a number of polymers for various uses, such as:

• for comparison purposes during the preparation of HAp based biocomposites with PVA and collagen.
• for preparation of poly(methyl methacrylate) (PMMA)/hydroxyapatite (HA) by powder liquid method to manufacture denture base composites.

Safety Information

• Storage Class Code: 13 - Non Combustible Solids
• WGK: WGK 1
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves