Hydroxyapatite
ALDRICH/693863 - nanopowder, <200 nm particle size (BET), contains 5 wt. % silica as dopant, synthetic
Synonym: Calcium phosphate tribasic; Si-HAp; Calcium hydroxyphosphate; HAp; Hydroxylapatite; Tribasic calcium phosphate
CAS Number: 12167-74-7
Empirical Formula (Hill Notation): HCa5O13P3
Molecular Weight: 502.31
MDL Number: MFCD00010904
Linear Formula: [Ca5(OH)(PO4)3]x
Product Type: Chemical
TEM image of Si-HAp nanoparticles
TEM diffraction pattern of Si-HAp nanoparticles
| bulk density | 2‑6 g/cm3 |
| contains | 5 wt. % silica as dopant |
| form | nanopowder |
| solid | |
| InChI | 1S/5Ca.3H3O4P.H2O/c;;;;;3 |
| InChI key | XYJRXVWERLGGKC-UHFFFAOYSA |
| mp | 1100 °C (lit.) |
| particle size | <200 nm (BET) |
| SMILES string | [Ca++].[Ca++].[Ca++].[Ca+ |
| surface area | 10-15 m2/g , typical |
| Application: | Si-substituted hydroxyapatite (Si-HAp) nanopowder can be incorporated in biodegradable polymer composites or deposited on biocompatible surfaces similar to pure HAp nanopowder (cat. no. 677418). Biological activity of HAp was shown to be enhanced by substitution of silicon ions into a fraction of HAp lattice phosphate sites. |
| Legal Information: | Product of Engi-Mat Co. |
| Packaging: | 5 g in glass bottle |
| RIDADR | NONH for all modes of transport |
| WGK Germany | WGK 3 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| mp | 1100 °C (lit.) |
| UNSPSC | 12352302 |