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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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
Creators:
Kosa, Ladislav
Nerád, Ivan
Strečko, Jozef
Proks, Ivo
Adamkovičová, Katarína
Journal or Publication Title:
Collection of Czechoslovak Chemical Communications, 58, 9, pp. 1989-1996

Abstract

Differential enthalpies of solution of components in binary systems 2 CaO . Al<sub>2</sub>O<sub>3</sub> . SiO<sub>2</sub>-CaO . Al<sub>2</sub>O<sub>3</sub> . 2 SiO<sub>2</sub>, CaO . SiO<sub>2</sub>-CaO . Al<sub>2</sub>O<sub>3</sub> . 2 SiO<sub>2</sub> and CaO . SiO<sub>2</sub>-2 CaO . Al<sub>2</sub>O<sub>3</sub> . SiO<sub>2</sub> 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 . Al<sub>2</sub>O<sub>3</sub> . 2 SiO<sub>2</sub> and 2 CaO . Al<sub>2</sub>O<sub>3</sub> . SiO<sub>2</sub> in CaO . SiO<sub>2</sub> over temperature range considered we can conclude that the reactions were closed chains of SiO<sub>4</sub> tetrahedra in CaO . SiO<sub>2</sub> melt break, are exothermic. On the other hand positive values of this quantity for CaO . SiO<sub>2</sub> in CaO . Al<sub>2</sub>O<sub>3</sub> . 2 SiO<sub>2</sub> and 2 CaO . Al<sub>2</sub>O<sub>3</sub> . SiO<sub>2</sub> led us to the conclusion that the progressive breaking originally closed chains in CaO . SiO<sub>2</sub> melt has endothermic character.

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
Creators:
Kosa, Ladislav
Nerád, Ivan
Strečko, Jozef
Proks, Ivo
Adamkovičová, Katarína
Divisions:Life and Chemical Sciences > Institute of Organic Chemistry and Biochemistry > Collection of Czechoslovak Chemical Communications
Journal or Publication Title:Collection of Czechoslovak Chemical Communications
Volume:58
Number:9
Page Range:pp. 1989-1996
ISSN:0010-0765
E-ISSN:1212-6950
Publisher:Institute of Organic Chemistry and Biochemistry
Related URLs:
URLURL Type
http://dx.doi.org/10.1135/cccc19931989UNSPECIFIED
ID Code:321
Item Type:Article
Deposited On:06 Feb 2009 17:00
Last Modified:06 Feb 2009 16:00

Citation

Kosa, Ladislav; Nerád, Ivan; Strečko, Jozef; Proks, Ivo; Adamkovičová, Katarína (1993) 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. Collection of Czechoslovak Chemical Communications, 58 (9). pp. 1989-1996. ISSN 0010-0765

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