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Differential Enthalpies of Solution of Components in Binary Systems 2 CaO . Al2O3 . SiO2-CaO . Al2O3 . 2 SiO2, CaO . SiO2-CaO . Al2O3 . 2 SiO2 and CaO . SiO2-2 CaO . Al2O3 . SiO2
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Differential enthalpies of solution of components in binary systems 2 CaO . Al2O3 . SiO2-CaO . Al2O3 . 2 SiO2, CaO . SiO2-CaO . Al2O3 . 2 SiO2 and CaO . SiO2-2 CaO . Al2O3 . SiO2 as the function of composition and temperature were determined on the base of isothermal composition dependences of enthalpies of mixing and temperature dependences of heats of fusion of their pure components. From the values of the first differential heat of solution of CaO . Al2O3 . 2 SiO2 and 2 CaO . Al2O3 . SiO2 in CaO . SiO2 over temperature range considered we can conclude that the reactions were closed chains of SiO4 tetrahedra in CaO . SiO2 melt break, are exothermic. On the other hand positive values of this quantity for CaO . SiO2 in CaO . Al2O3 . 2 SiO2 and 2 CaO . Al2O3 . SiO2 led us to the conclusion that the progressive breaking originally closed chains in CaO . SiO2 melt has endothermic character.
Institute of Organic Chemistry & Biochemistry
Title: Differential Enthalpies of Solution of Components in Binary Systems 2 CaO . Al2O3 . SiO2-CaO . Al2O3 . 2 SiO2, CaO . SiO2-CaO . Al2O3 . 2 SiO2 and CaO . SiO2-2 CaO . Al2O3 . SiO2
Description:
Differential enthalpies of solution of components in binary systems 2 CaO .
Al2O3 .
SiO2-CaO .
Al2O3 .
2 SiO2, CaO .
SiO2-CaO .
Al2O3 .
2 SiO2 and CaO .
SiO2-2 CaO .
Al2O3 .
SiO2 as the function of composition and temperature were determined on the base of isothermal composition dependences of enthalpies of mixing and temperature dependences of heats of fusion of their pure components.
From the values of the first differential heat of solution of CaO .
Al2O3 .
2 SiO2 and 2 CaO .
Al2O3 .
SiO2 in CaO .
SiO2 over temperature range considered we can conclude that the reactions were closed chains of SiO4 tetrahedra in CaO .
SiO2 melt break, are exothermic.
On the other hand positive values of this quantity for CaO .
SiO2 in CaO .
Al2O3 .
2 SiO2 and 2 CaO .
Al2O3 .
SiO2 led us to the conclusion that the progressive breaking originally closed chains in CaO .
SiO2 melt has endothermic character.
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