What Are The Cruda Materia Vitri Borosilicate?

Rudis materia components deborosilicate vitrumincluduntur vicus arena, borax, acidum boricum, aluminium hydroxidum, sodium chloridum, calcium oxydatum, oxydatum sodium et polytetrafluoroethylene, vitrum borosilicum altum pondere, in materia rudis partes: quartz arena partes 100, partes 6-10 boraxes, acidum boricum 5 partes -9, aluminii hydroxidi partes 2-4, partes chloridi natrii 1-3, oxydi calcii partes 0,5-1, oxydi natrii partes 4-7, partes polytetrafluoroethylenae 0.3-0.7.