Determination of Gibbs Energy of Formation of Cuspidine (3CaO 2SiO2 CaF2) by Transpiration Method

Hiroyuki Fukuyama, Hideki Tabata, Tadayuki Oshima, Kazuhiro Nagata
2004 ISIJ International  
The standard Gibbs energy change of the following reaction of cuspidine (3CaO · 2SiO 2 · CaF 2 ) with water vapor has been determined by a transpiration method as From this result, the standard Gibbs energy of formation of cuspidine has been evaluated as, The constituent activities of the CaO-SiO 2 -CaF 2 system and fluorine emission from the system at elevated temperatures have been evaluated based on the obtained thermodynamic data.
doi:10.2355/isijinternational.44.1488 fatcat:fxmpwjx7hnaibhhbh2xr6lhrei