PYREX® Round Bottom Boiling Flask with Short Neck & [ST] Joint, Corning 4320

PYREX® round bottom boiling flasks have full length outer Standard Taper joints, but with shorter necks. They are carefully designed and 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® boiling flasks is 230°C

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