Thermochemical properties of the Fe-analogue of cryolite, Na3FeF6
✍ Scribed by Nerád, Ivan ;Mikšíková, Eva
- Book ID
- 111487967
- Publisher
- Walter de Gruyter GmbH
- Year
- 2007
- Tongue
- English
- Weight
- 178 KB
- Volume
- 5
- Category
- Article
- ISSN
- 2391-5420
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## Abstract The areas of the fusion and crystallization peaks of Na3FeF6 and of four calibration substances (KCl, NaCl, Na2SO4, and K2SO4) were measured using the DSC mode of a high-temperature calorimeter. Using the measured quantities and known values of the enthalpy of fusion of the calibration
The phase analysis of cryolite (Na 3 AlF 6 ) and sodium metasilicate (Na 2 SiO 3 ) was performed by thermal analysis. The eutectic system with a region of two immiscible substances at a concentration of Na 2 SiO 3 between 42.8 and 46.3 mol-% was identified and the eutectic temperature determined to