Batch Materials Excluding Sand and Soda Ash

JSGT 195 V40 T388-T404

Factors governing the suitability of a glassmaking material are stated and illustrated by considering alternative materials for the introduction of alumina and of lithia into glass. Other batch materials, such as limestone, fluorspar, barium compounds, zinc oxide and borates are briefly considered. A table giving typical analyses, bulk densities, specific gravities and melting points of the common batch materials is given. Thermal conductivities of powdered batch materials have been determined and a description is given of the apparatus.

C. E. Ramsden & S. H. Ryder