Solubility of Refractory Oxides in Soda‐Lime Glass

Abstract

A method for measuring the solubility limit of refractory oxides in glass is presented, and the solubilities of Al 2 O 3 , ZrO 2 , SnO 2 , and Cr 2 O 3 in soda‐lime glass are given as a function of temperature. The order of solubility in soda‐lime glass is Al 2 O 3 ZrO 2 SnO 2 Cr 2 O 3 at 1300° to 16Q0°C. The solubility of ZrO 2 in Al 2 O 3 ‐saturated soda‐lime glass is much lower than that in pure soda‐lime glass.