SYNTHESIS OF SODIUM WEEKSITE AND ITS TRANSFORMATION INTO WEEKSITE

Citation
R. Vochten et al., SYNTHESIS OF SODIUM WEEKSITE AND ITS TRANSFORMATION INTO WEEKSITE, Neues Jahrbuch fur Mineralogie Monatshefte, (12), 1997, pp. 569-576
Citations number
14
ISSN journal
00283649
Issue
12
Year of publication
1997
Pages
569 - 576
Database
ISI
SICI code
0028-3649(1997):12<569:SOSWAI>2.0.ZU;2-Z
Abstract
Sodium weeksite has been synthesized at 185 degrees C (1.3 MPa) from q uartz, NaCl and uranylnitrate by a new method avoiding local supersatu ration of silicate species in solution. Synthetic weeksite was synthes ized from sodium weeksite by ion exchange. The unit cell parameters ar e determined for both synthetic weeksites and are very close to each o ther. The infrared spectra indicate the presence of ordered and disord ered water molecules.