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Hydroxyapatite

purum p.a., ≥90% (as Ca3(PO4)2, KT)

Synonym(s):

Calcium phosphate hydroxide, Durapatite, Hydroxylapatite

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About This Item

Linear Formula:
3Ca3(PO4)2 · Ca(OH)2
CAS Number:
1306-06-5
Molecular Weight:
502.31
NACRES:
NA.21
PubChem Substance ID:
57647915
UNSPSC Code:
12352300
EC Number:
215-145-7
MDL number:
MFCD00010904
Assay:
≥90% (as Ca3(PO4)2, KT)
Form:
powder
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grade

purum p.a.

Quality Segment

100

assay

≥90% (as Ca3(PO4)2, KT)

form

powder

impurities

≤5% water (KFT)

loss

≤10% loss on ignition, 800 °C

anion traces

chloride (Cl-): ≤500 mg/kg, sulfate (SO42-): ≤2000 mg/kg

cation traces

Cd: ≤5 mg/kg, Co: ≤5 mg/kg, Cu: ≤20 mg/kg, Fe: ≤400 mg/kg, Ni: ≤5 mg/kg, Pb: ≤5 mg/kg, Zn: ≤10 mg/kg

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

General description

Hydroxyapatite is a bioceramic mainly found in minerals of bone and teeth. Due to its high biocompatibility and similarity with inorganic components found in hard tissues, it is mainly used to produce biocomposites and prostheses for bones and teeth replacement.
Bone and tooth implant materials have been prepared from polycrystalline hydroxyapatite. The compressive, flexural, torsional and dynamic torsional strengths of polycrystalline hydroxyapatite were investigated. Electrophoretic deposition of hydroxyapatite on to flat titanium plate material has been studied.

Application

Hydroxyapatite may be used in the preparation of bioceramic specimens by incorporation of a small amount of silicon (0.4wt%) into the structure of hydroxyapatite. It may be used for the preparation of porous microstructures, having important prosthetic applications.

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Storage Class

11 - Combustible Solids

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

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