Hydroxyapatite

grade

puriss.

Quality Level

200

Assay

≥90% (calculated on glowed substance)

form

powder

quality

meets analytical specification of Ph. Eur. BP FCC E341

composition

Ca 35-40%

impurities

residual solvents complies
≤0.001% heavy metals (as Pb)
≤0.2% insoluble in HCl

loss

≤8% loss on ignition 800 °C

anion traces

chloride (Cl^–): ≤1500 mg/kg
fluoride (F^–): ≤50 mg/kg
sulfate (SO₄^2-): ≤5000 mg/kg

cation traces

As: ≤2 mg/kg
Cd: ≤1 mg/kg
Cu: ≤20 mg/kg
Fe: ≤400 mg/kg
Hg: ≤1 mg/kg
Pb: ≤2 mg/kg
Zn: ≤20 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