Density of some soda-potash-silica glasses as a function of the composition

Abstract

Certain relations between the specific volume and composition of glasses of the soda-silica series have previously been rep orted. Additional glasses were made in the same series and also in the potash-silica and soda-potash-silica series. The glasses were analyzed a nd their densities measured. Analysis of the new data suggests tha t the sp ecific volume-composition relations change definitely at compositions approximating those of eutectics, instead of at those of simple molecular ratios, as previously reported.