Measurement and Development of Solubility Correlations for Tritolylamine in Twelve Organic Solvents
Bibliographic record
Abstract
The solubility of tritolylamine (TTA) in 12 solvents (hexane, heptane, n -octane, decane, hexadecane, toluene, benzene, 2-propanol, propanol, 2-butanone, methanol, and ethanol) was measured gravimetrically and compared with the predictions obtained from the ideal solution and UNIQUAC equations. To use the UNIQUAC equation, the specific heat and heat of fusion of TTA were measured by differential scanning calorimetry (DSC). DSC results also indicated that TTA does not have any enantiotropically related polymorphs. It is shown that the UNIQUAC predictions are close to the measured solubility values. In addition, measurement of the solubility of TTA in hexane was performed by an on-line density meter. The results compared closely with those obtained with the gravimetric method. The solvents were chosen so that their polarity indexes cover a wide range.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.004 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.001 |
| 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 source (direct Gemma or distilled Codex), 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".