Leaching kinetics of metallic silver with sodium cyanide in hydrogen peroxide solution
Why this work is in the frame
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Bibliographic record
Abstract
Abstract This article describes the kinetics of dissolving pure metallic silver (Ag) in sodium cyanide with a hydrogen peroxide (H 2 O 2 ) solution. The impacts of temperature, sodium cyanide concentration, rotation speed, and H 2 O 2 concentration were investigated. The findings demonstrate that a favourable relationship exists between the rate of silver dissolution and the rotation speed. Moreover, sodium cyanide concentration of 0.0125 M was sufficient to dissolve silver. Hydrogen peroxide concentrations between 0.05 and 0.035 M have a significant impact on the dissolution rate; however, 0.050 M concentration had an adverse effect and resulted in the formation of a silver oxide layer. Temperatures between 20 and 55°C have a positive influence because this range is where H 2 O 2 is stable, but a temperature of 60°C decreased the silver dissolution rate due to decomposition of hydrogen peroxide. A measurement of 21.50 kJ/mol was calculated of the activation energy.
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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 it