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http://nopr.niscpr.res.in/handle/123456789/20490| Title: | Phase diagram of thermodynamic non-equilibrium state of MgO-B2O3-18%MgCl2-H2O system at 0°C |
| Authors: | Zhu, Lixia Gao, Shiyang Xia, Shuping |
| Issue Date: | Jan-2003 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | The supersaturated solutions of MgO-B2O3 18%MgCl2-H2O with different mole ratios of MgO: B2O3, have been prepared and kept at 0±0.1°C. The crystallization paths of boric acid, Mg-borates and Mg-oxychloride from the solutions have been determined by chemical analysis of the solution samples taken at a given time interval during crystallization, and then the liquid-solid phase diagram of thermodynamic non-equilibrium state of MgO-B2O3- 18%MgCl2-H2O system at 0°C has been constructed. In this phase diagram, five crystallization fields appear, boric acid (H3BO3), mcallisterite (MgO·3B2O3 ·7.5H2O), hungtsaite (MgO.2B2O3.9H2O), inderite (2MgO.3B2O3.15H2O) and magnesium oxychloride (5 Mg(OH)2·MgCl2·8H2O). |
| Page(s): | 35-41 |
| ISSN: | 0975-0975(Online); 0376-4710(Print) |
| Appears in Collections: | IJC-A Vol.42A(01) [January 2003] |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| IJCA 42A(1) 35-41.pdf | 1.44 MB | Adobe PDF | View/Open |
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