Bismuth substituted calcium, strontium, and lead apatites

Journal Article · Mon Feb 28 23:00:00 EST 1983 · J. Solid State Chem.; (United States)

DOI:https://doi.org/10.1016/0022-4596(83)90162-7· OSTI ID:5719344

Mayer, I; Semadja, A

Bismuth substituted apatites of two general types have been prepared: M/sub 10-2x/Bi/sub x/Na/sub x/(PO/sub 4/)/sub 6/Y/sub 2/ (M = Ca, Sr, Pb; Y = F, Cl) and lead apatites with the Y ion completely vacant Pb/sub 10-(2x +2)/Bi/sub x/Na/sub x+2/(PO/sub 4/)/sub 6/. X-ray powder diffraction patterns of all the compounds show the P6/sub 3//m hexagonal apatite type structure. The change of the lattice parameters and c/a values with compositions indicate the preference of the bismuth ions to occupy the 6h triangular positions. Bi/sup 3 +/ tends to incorporate in apatites with unoccupied halide positions.

• Research Organization: Hebrew Univ., Jerusalem, Israel
• OSTI ID: 5719344
• Journal Information: J. Solid State Chem.; (United States), Journal Name: J. Solid State Chem.; (United States) Vol. 46:3; ISSN JSSCB
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ALKALINE EARTH METAL COMPOUNDS
APATITES
BISMUTH CHLORIDES
BISMUTH COMPOUNDS
BISMUTH FLUORIDES
CALCIUM CHLORIDES
CALCIUM COMPOUNDS
CALCIUM FLUORIDES
CALCIUM HALIDES
CHLORIDES
CHLORINE COMPOUNDS
COHERENT SCATTERING
COMPARATIVE EVALUATIONS
DIFFRACTION
FLUORIDES
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
LEAD CHLORIDES
LEAD COMPOUNDS
LEAD FLUORIDES
LEAD HALIDES
MINERALS
OXYGEN COMPOUNDS
PHOSPHATE MINERALS
PHOSPHATES
PHOSPHORUS COMPOUNDS
SCATTERING
STRONTIUM CHLORIDES
STRONTIUM COMPOUNDS
STRONTIUM FLUORIDES
STRUCTURAL CHEMICAL ANALYSIS
X-RAY DIFFRACTION