Corning PYREX 4260 / Kimble 25200 KIMAX Round Bottom Flask - 1000mL

Price is for one flask. Please specify if you have a preference when ordering.

These 1000mL PYREX/KIMAX round bottom boiling flasks have short ring necks and take a No. 8 rubber stopper. These ring neck boiling flasks are precisely tooled for uniform stopper fit. The reinforced rim increases mechanical strength. These flasks are used in applications requiring rigid stoppering and as wash bottles in routine lab washing. 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/KIMAX boiling flasks is 230°C.