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| DETERMINATION OF EQUILIBRIUM CONSTANT FOR SILICATE MELT POLYMERIZATION AND ITS APPLICATION |
| by Dou Shixue and Liu Huakun (Northeast Institute of Technology) |
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Cite this article:
by Dou Shixue and Liu Huakun (Northeast Institute of Technology). DETERMINATION OF EQUILIBRIUM CONSTANT FOR SILICATE MELT POLYMERIZATION AND ITS APPLICATION. Acta Metall Sin, 1981, 17(4): 454-460.
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Abstract An attempt was made to ascertain the correlation of equilibrium constant of the polymerization of binary silicate melts with the chemical bond parameters such as ratio of the effective nuclear charge of metallic ion to its radius, as well as the ionization potential and electronegativity in Allred-Rochow scale. The three-parameter equation derived was employed to estimate the equilibrium constant by which the polymerization of certain binary silicate systems is characterized. It was also evaluated the activities of metallic oxides, the anion distribution in silicate and mean chain length, etc. in connexion of expression of polymerization.The result is shown that both free oxygen ion concentration and degree of silicate polyanion polymerization increase with the increase of the charge-radious ratio, ionization potential and electronegativity in Allred-Rochow scale.Fair agreement of the calculated values of activities was found with the experiment data. This may be available to predict some properties of silicate melts.
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Received: 18 April 1981
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