A thermodynamic rationalisation for the oxidising behaviour of concentrated H<sub>2</sub>SO<sub>4</sub>
Bibliographic record
Abstract
Abstract An attempt is made to extend the principle of equilibrium electrochemical potential–pH diagrams for sulfur compounds in dilute aqueous solutions of sulfuric acid (H 2 SO 4 ) to more concentrated aqueous solutions up to 100 wt.%. Published Hammett acidity data is used to account for the medium effect (undissociated H 2 SO 4 ) on the proton activity. The calculated electrochemical potential‐Hammett acidity diagrams predict a thermodynamic stability domain for all three of the reduction products experimentally observed during cathodic electrolysis, which included sulfur dioxide (SO 2 ), sulfur (S), and hydrogen sulfide (H 2 S). The implications of the relative stability domains on corrosion control measures are discussed.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| 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) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".