study of Phase Equilibria in the System Nd2O3-Na2O-P2O5. The Quasi-Binary Section Nd(PO3)3-NaPO3

• Autorzy: Znamierowska T. , Bandrowski Sz.
• Języki publikacji: EN

Abstrakty

EN

The quasi-binary section Nd(PO3)3-NaPO3 has been investigated by thermoanalytical methods (DTA, TG, DTG) and X-ray powder diffraction and its phase diagram was proposed. It was found that initial metaphosphates react at a 1:1 molar ratio, forming the intermediate compound NaNd(PO3)4. It was confirmed, that it melts incongruently at about 866_C, giving Nd(PO3)3 and a liquid rich in NaPO3. The phosphate NaNd(PO3)4 is stable to room temperature and does not exhibit polymorphic transitions.

Słowa kluczowe

EN

phase diagram; DTA; TG; DTG; X-ray; sodium-neodymium metaphosphate

• Wydawca: Polskie Towarzystwo Chemiczne
• Czasopismo: Polish Journal of Chemistry
• Rocznik: 2003
• Tom: Vol. 77 / nr 9
• Strony: 1131--1134
• Opis fizyczny: Bibliogr. 7 poz., rys.

Twórcy

autor

Znamierowska T.

• Department of Inorganic Chemistry, Faculty of Engineering and Economics, Wrocław University of Economics, Komandorska 118/120, 53-345 Wrocław, Poland

autor

Bandrowski Sz.

• Department of Inorganic Chemistry, Faculty of Engineering and Economics, Wrocław University of Economics, Komandorska 118/120, 53-345 Wrocław, Poland

Bibliografia

• 1. Wong M.-S. and Kreidler E.R., J. Am. Ceram. Soc., 70(6), 396 (1987).
• 2. Begun G.M. and Bamberger C.E., J. Raman Spectroscopy, 13(3), 284 (1982).
• 3. Hong H.Y-P., Acta Cryst., B(30), 468 (1974).
• 4. Berak J. and Znamierowska T., Rocin. Chemii, 46, 1697 (1972).
• 5. Szuszkiewicz W., Thermochim. Acta, 198, 97 (1992).
• 6. Corbridge D.E.C., Structural Chemistry of Compounds, Topics in Phosphorus Chemistry Vol. 3, Wiley, (1966), pp. 234-45.
• 7. Koizumi H., Acta Cryst., B(32), 2254 (1976).