Oxidation-reduction equilibria of ferrous/ferric ions in oxide melts
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Bibliographic record
Abstract
Oxidation-reduction equilibrium experiments were conducted with oxide melts containing CaO, Li2O, Al2O3, ZnO, B2O3, SiO2 and small concentrations of iron oxide. The results indicated that for compositions within the acidic regime, the ratio {(Fe3+)/(Fe2+) PO21/4} decreased with an increase in basicity while for relatively basic melts, the ratio increased with an increase in basicity. This variation of {(Fe3+)/(Fe2+) PO21/4} could be interpreted in terms of the optical basicity of the glass melts and is consistent with the following expressions for the red-ox equilibria within acidic and relatively basic melts, respectively: In an acidic melt, the temperature dependence of the reaction yielded an enthalpy value which was in excellent agreement with the enthalpy change for the reaction: For a relatively basic melt, the enthalpy value for the corresponding reaction was about half of that found for the acidic melt.
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Full frame distilled prediction
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Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 0.000 |
Machine scores (provisional)
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Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
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