Boiling flasks can be safely heated to a high temperature, which allows the contained liquid to be brought to a boil. For this reason, boiling flasks are manufactured from borosilicate glass, which can sustain temperatures around 500°C. To reach these temperatures, boiling flasks are often situated within heating mantles.
Growing Labs provides numerous boiling flasks, including both flat-bottom and round-bottom versions. Ground glass joint flasks are designed for use with distillation apparatus. Multiple sizes of all types are available, ranging from 50 to 5000 mL.