COLOURED GLAZE

摘要

FIELD: chemistry.SUBSTANCE: coloured glaze contains, weight portions: lead monoxide 4-4.5; quartz sand 4-4.5; kaolin 0.5-1; cobalt oxide 0.3-0.5; calcium borate 0.5-1; sodium borate 0.5-1.EFFECT: higher water resistance of the glaze.1 tbl