PYREX® Florence Boiling Flasks with Long Neck, Corning 4060

PYREX® flat bottom Florence flasks have long necks with tooled mouths and take a matching size rubber stopper. They are manufactured from No. 7740 borosilicate glass. Wall thicknesses are carefully controlled to provide the proper balance between thermal expansion and mechanical strength for greater shock resistance. Their excellent chemical durability results in contamination-free results and long life under the toughest lab conditions. The normal working temperature for PYREX® Florence flasks is 230°C

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