Tableau 2
Composition molaire d’un verre, et masse et volume des oxydes, température de fusion et enthalpie de formation à 298 K des oxydes et du verre. Données issues de Robie et Hemingway pour les Mmol, Vmol, Tm, et ΔHf298 des oxydes [69], et mesure IPGP pour le verre. Données de Linard [70], Majzlan et al. [71] et Navrotsky et al. [72,73] pour les ΔHs des oxydes et IPGP pour celle du verre. Densité du verre 2,7116 ± 0,0004.
Molar composition of a glass, and mass and volume of oxides, melting temperature and enthalpy of formation at 298 K of oxides and glass. Data from Robie and Hemingway for Mmol, Vmol, Tm, and ΔHf298 oxides [69], and IPGP measurement for glass. Data from Linard [70], Majzlan et al. [71] and Navrotsky et al. [72,73] for the ΔHs of oxides and IPGP for that of glass. Glass density 2,7116 ± 0,0004.
| Composition molaire du verre, % | Mmol, g | Vmol, cm3 | Tm, K | ΔHf298, J/mol | ΔHs, J/mol | |
|---|---|---|---|---|---|---|
| SiO2 | 46,18 | 60 085 | 22 688 | 1996 | −910 700 | −4230 |
| Fe2O3 | 2,36 | 159 692 | 30 274 | 1895 | −840 640 | −78 420 |
| FeO | 0,42 | 71 846 | 12 000 | 1652 | −272 043 | – |
| Al2O3 | 12,94 | 101 961 | 25 575 | 2345 | −1 675 700 | 32 603 |
| CaO | 15,52 | 56 079 | 16 764 | 3200 | −635 089 | −55 650 |
| MgO | 8,22 | 40 304 | 11 248 | 3125 | −601 490 | 3010 |
| Na2O | 14,36 | 61 979 | 25 880 | 1193 | −414 820 | −171 260 |
| Verre | 65 928 | 24 313 | 1490 | −40 690 | 11 927 |
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