Ru2Sn3: enthalpy of formation
4 accepted literature formation-enthalpy value(s) (experimental 2, model 1, unspecified 1).
Systems: Ru–Sn
Literature values
| Value | Phase as printed | T (K) | Class | Method | System | Source | Location | Quote |
|---|---|---|---|---|---|---|---|---|
| -21.6 kJ/mol (basis unstated) ± 3 | Ru0.4Sn0.6 | 298.15 | experimental | direct reaction calorimetry | Ru–Sn | [1] Charles 1999 cites Perring 1997 | Table 1, p. 1, row 5 report | |
| -21.1 kJ/mol (basis unstated) ± 2.5 | Ru0.4Sn0.6 | 298.15 | experimental | mass spectrometry | Ru–Sn | [1] Charles 1999 cites Ciccioli 1998 doi | Table 1, p. 1, row 7 report | |
| -24.3 kJ/mol (basis unstated) ± 1.6 | Ru0.4Sn0.6 | model | Ru–Sn | [1] Charles 1999 | Table 1, p. 1, row 3 report | |||
| -24.3 kJ/mol (basis unstated) | Ru0.4Sn0.6 | unspecified | Ru–Sn | [1] Charles 1999 cites Perring 1997 | Table 4, p. 4, row 3 report |
Uncertainty budget
Components kept separate, in the value's unit (literature SCHEMA.md, UNCERTAINTY_CALIBRATION.md): effective = max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter). The method floor is the robust between-study scatter of the method class in ORCHID (calibrated) or a documented prior; printed values and printed uncertainties are unchanged.
| Value | Unit | Printed | Reading | Method (class, basis) | Composition | Scatter | Conversion | Effective |
|---|---|---|---|---|---|---|---|---|
| -21.6 | kJ/mol (basis unstated) | 3 | 5.000e-5 | 3.2 (solution_reaction_calorimetry, calibrated) | 3.2 | |||
| -21.1 | kJ/mol (basis unstated) | 2.5 | 5.000e-5 | 4.2 (kems_vapour, calibrated) | 4.2 | |||
| -24.3 | kJ/mol (basis unstated) | 1.6 | 5.000e-5 | 3.9 (model_calculated, calibrated) | 3.9 | |||
| -24.3 | kJ/mol (basis unstated) | 5.000e-4 | 3.5 (unknown, calibrated) | 3.5 |
Sources
- J. Charles, J. J. Kuntz, J. C. Gachon, L. Perring, A thermodynamic assessment of the ruthenium-tin (Ru-Sn) system, JPE 20, 573-580 (1999). doi:10.1361/105497199770340563