On some regularities of magnesium oxide solubility in melts with different content of alkaline earth metal chlorides
| Autor: | T. V. Ponomarenko, A.L. Rebrov, T.P. Rebrova, Oleg Ivanovych Yurchenko, Victor L. Cherginets |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Alkaline earth metal
Magnesium Inorganic chemistry Solvation chemistry.chemical_element 02 engineering and technology Oxide ion 021001 nanoscience & nanotechnology Alkali metal Chloride Atomic and Molecular Physics and Optics Melt temperature 020401 chemical engineering chemistry medicine General Materials Science 0204 chemical engineering Physical and Theoretical Chemistry Solubility 0210 nano-technology medicine.drug |
| Zdroj: | The Journal of Chemical Thermodynamics. 113:1-5 |
| ISSN: | 0021-9614 |
| Popis: | Experimental data on solubility of magnesium oxide in melts based on mixed chlorides of alkali and alkaline earth metal are complemented by investigation in SrCl 2 -rich melt of KSr 2 Cl 5 composition. The changes of MgO solubility in the chloride melts based on CaCl 2 and SrCl 2 at melt temperature variation obeys to predictions of the Shreder-Le Chatelier equation. This brings MgO solubility in the different melts to the same conditions ( T = 973 K). The oxoacidic properties of the melt strengthen with increase of the concentration of alkaline earth cations and different complexes are formed due to the solvation of oxide ion in the melts based on these cations: BaO in Ba 2+ -based chloride melts and 2SrCl 2 ·SrO in Sr 2+ -based ones. In CaCl 2 -based melts simultaneous formation of complexes of 4CaCl 2 ·CaO and 2CaCl 2 ·CaO compositions is possible. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect