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http://hdl.handle.net/11375/13359| Title: | Phase Relations of the Hydroxyl Felspathoids in the System NaAlSiO4-NaOH-H20 |
| Authors: | Anderson, Ascroft Mackenzie Peter |
| Advisor: | Burley, B.J. |
| Department: | Geology |
| Keywords: | Geology;Geology;Geology |
| Publication Date: | May-1968 |
| Abstract: | <p>A study was made of the phase relationships in the system NaAlSiO<sub>4</sub>-NaOH-H<sub>2</sub>O, at 15,000 p.s.i. and at 450°C, 520°C, 600°C and 700°C. The following phases were found and characterised: hydroxyl varieties of nosean, sodalite and cancrinite, with formulae approximating to 3NaAlSiO<sub>4</sub>.NaOH.xH<sub>2</sub>O, 1x1.5, sodic nepheline and phase X, apparently a previously unreported phase, with composition approaching Na<sub>4</sub>Al<sub>2</sub>Si<sub>2</sub>O<sub>9</sub>. Approximate phase diagrams were deduced for the four temperatures.</p> |
| URI: | http://hdl.handle.net/11375/13359 |
| Identifier: | opendissertations/8181 9350 4613651 |
| Appears in Collections: | Open Access Dissertations and Theses |
Files in This Item:
| File | Size | Format | |
|---|---|---|---|
| fulltext.pdf | 4.38 MB | Adobe PDF | View/Open |
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