Abstract
Relation between the visccsity and electrical conductivity was discussed with the molten CaO-SiO2-Al2O3 cr [CaO (43)-SiO2 (43)-Al2O3 (14)]-addition system, from the arrangements of the data which were reported in previous works. The viscosity coefficient and conductivity were related with each other, in the equation log η=a+b·log κ. The calculated viscosity coefficient is in good agreement with observed one. The estimation of the density, surface tension, viscosity coefficient or conductivity from the slag composition was tried on the molten CaO-SiO2-Al2O3 system.
