Ga39Na22: enthalpy of formation

3 accepted literature formation-enthalpy value(s) (experimental 2, model 1); experimental median -22.5 kJ/mol-atom (n = 2).

Systems: Ga–Na

Literature values

Enthalpy of formation of Ga39Na22 reported in the literature (3)
ValuePhase as printedT (K)ClassMethodSystemSourceLocationQuote
-23.5 kJ/mol-atomGa39Na22723.15experimentalGa–Na[1] Wang 2007
cites Zabdyr 1988 doi		Table 3, p. 4, row 6
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-21.5 kJ/mol-atomGa39Na22723.15experimentalGa–Na[1] Wang 2007
cites Gambino 1973 doi		Table 3, p. 4, row 5
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-25.5 kJ/mol-atomGa39Na22723.15modelGa–Na[1] Wang 2007Table 3, p. 4, row 4
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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.

Uncertainty budget of the literature values of Ga39Na22
ValueUnitPrintedReadingMethod (class, basis)CompositionScatterConversionEffective
-23.5kJ/mol-atom0.053.5 (unknown, calibrated)3.5
-21.5kJ/mol-atom0.053.5 (unknown, calibrated)3.5
-25.5kJ/mol-atom0.053.9 (model_calculated, calibrated)3.9

Sources

  1. Jingfang Wang, Wenxia Yuan, Min Li, Thermodynamic modeling of the Ga–N–Na system, Journal of Crystal Growth 307, 59-65 (2007). doi:10.1016/j.jcrysgro.2007.05.044