ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

 Phase coexistence in the system Mg₃(PO₄)₂—Ca₃(PO₄)₂—Na₃PO₄

J. Majling and F. Hanic

Institute of Inorganic Chemistry, Slovak Academy of Sciences, 809 34 Bratislava

Abstract: The phase coexistence in the subsolidus region of the title system was detd. by x-ray powder diffraction (at 800°). Crystallog. data are given for one ternary (Mg₄Na(PO₄)₃) and one quaternary (Mg₇CaNa₂(PO₄)₆). Mg₄Na(PO₄)₃ crystd. in the orthorhombic system with a 9.875(2) × 10^-10, b 15.234(4) × 10^-10, c 6.346(1) × 10^-10 m. Mg₇CaNa₂(PO₄)₆ crystd. in the rhombohedral system (a 16.616 × 10^-10 m, α 53.43°). Corresponding hexagonal parameters are a 14.938(7) × 10^-10 and c 42.61(2) × 10^-10 m.

Full paper in Portable Document Format: 302a145.pdf

Chemical Papers 30 (2) 145–152 (1976)