Note on the Formation of Sodium Sulphate in Glass Furnaces and of some Defects Arising Therefrom
JSGT 1933 V17 T022-T024
Sulphur dioxide in the products of combustion, together with oxygen, react with basic oxides such as sodium oxide or lead oxide in glasses to form sulphates. With fuels containing relatively high percentages of sulphur and under favourable conditions of temperature quite heavy deposits of sulphate may be formed on glass during reheating processes and oven on the surface of molten glass in the working sections of melting furnaces.
W. E. S. Turner