NiSe: enthalpy of formation
4 accepted literature formation-enthalpy value(s) (experimental 3, unspecified 1).
Systems: Ni–Se
Literature values
| Value | Phase as printed | T (K) | Class | Method | System | Source | Location | Quote |
|---|---|---|---|---|---|---|---|---|
| -38.5 kJ/mol (basis unstated) | NiSe | 298.15 | experimental | Ni–Se | [1] Zobač 2021 cites Fabre 1887 | Table 3, p. 4, row 4 report | ||
| -29 kJ/mol (basis unstated) | NiSe | 298.15 | experimental | Ni–Se | [1] Zobač 2021 cites Bichowsky 1936 | Table 3, p. 4, row 5 report | ||
| -21 kJ/mol (basis unstated) ± 5 | NiSe | 298.15 | experimental | Ni–Se | [1] Zobač 2021 cites Rossini 1952 | Table 3, p. 4, row 6 report | ||
| -39.97 kJ/mol (basis unstated) | NiSe | 1050 | unspecified | Ni–Se | [1] Zobač 2021 cites Grnvold 1972 doi | Table 3, p. 4, row 7 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 |
|---|---|---|---|---|---|---|---|---|
| -38.5 | kJ/mol (basis unstated) | 0.05 | 7 (unknown, calibrated) | 7 | ||||
| -29 | kJ/mol (basis unstated) | 0.5 | 7 (unknown, calibrated) | 7 | ||||
| -21 | kJ/mol (basis unstated) | 5 | 0.5 | 7 (unknown, calibrated) | 7 | |||
| -39.97 | kJ/mol (basis unstated) | 0.005 | 7 (unknown, calibrated) | 7 |
Sources
- Ondřej Zobač, Kateřina Buchlovská, Jana Pavlů, Aleš Kroupa, Thermodynamic Description of Binary System Nickel-Selenium, J. Phase Equilib. Diffus. 42, 468-478 (2021). doi:10.1007/s11669-021-00906-9