DESCRIPTION
- These 250 mL PYREX® flat bottom boiling flasks have long necks with tooled mouths and take a No. 5 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® boiling flasks is 230°C.
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