... and chemical properties, such as: 1, high temperature resistant quartz glass softening point temperature of about 1730 DEG C at ... reach 1450 DEG C, 2, corrosion-resistant except hydrofluoric acid, the quartz glass hardly and other acids chemical reaction, the ... beaker, tube, evaporating dish, reagent bottles, quartz crucible ), quartz glass, quartz tube cutting, burning mouth, sealing, scrub, and other ...