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21223

Sigma-Aldrich

Hydroxyapatite

purum p.a., ≥90% (as Ca3(PO4)2, KT)

Sinônimo(s):
Durapatite, Hydroxylapatite, Calcium phosphate hydroxide
Fórmula linear:
3Ca3(PO4)2 · Ca(OH)2
Número CAS:
Peso molecular:
502.31
Número EC:
Número MDL:
ID de substância PubChem:
NACRES:
NA.21

Nível de qualidade

100

grau

purum p.a.

teor

≥90% (as Ca3(PO4)2, KT)

forma

powder

Impurezas

≤5% water (KFT)

perda

≤10% loss on ignition, 800 °C

traços de ânion

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

traços de cátion

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

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Descrição geral

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.
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.

Aplicação

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.

Storage Class Code

13 - Non Combustible Solids

WGK Alemanha

WGK 3

Ponto de fulgor (ºF)

Not applicable

Ponto de fulgor (ºC)

Not applicable

Equipamento de proteção individual

Eyeshields, Gloves

Certificado de análise

Certificado de origem

Hydroxyapatite synthesis and the benefits of its blend with calcium aluminate cement.
Oliveira IR, et al.
Ceramics International, 42(2), 2542-2549 (2016)
P Ducheyne et al.
Biomaterials, 7(2), 97-103 (1986-03-01)
Hydroxyapatite from two sources was electrophoretically deposited onto flat titanium plate material. Depending upon the deposition conditions various changes in the structure of the ceramic were identified. A well-adhering Ti-P compound was present at the interface. Hydroxyapatite oxygenated to various...
Mechanical properties of sintered hydroxyapatite for prosthetic applications.
Akao M ,et al.
J. Mater. Sci., 16(3), 809-812 (1981)
Chemical characterization of silicon-substituted hydroxyapatite
Gibson I, et al.
Journal of Biomedical Materials Research, 44(4), 422-428 (1999)
Sergio Bertazzo et al.
Nature materials, 12(6), 576-583 (2013-04-23)
The accumulation of calcified material in cardiovascular tissue is thought to involve cytochemical, extracellular matrix and systemic signals; however, its precise composition and nanoscale architecture remain largely unexplored. Using nano-analytical electron microscopy techniques, we examined valves, aortae and coronary arteries...

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