PYREX 250mL Short Ring Neck Boiling Flask, Round Bottom, Part Number 4260-250-CL, Buy now from Corning Glass at Dawn Scientific.
(This is the suggested replacement for 4280-250.)nnnThese 250 mL PYREX® round bottom boiling flasks have short ring necks and take a No. 5 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® boiling flasks is 230°C.
Corning Incorporated, a renowned leader in materials science, has continually pushed the boundaries of innovation by merging its extensive expertise with robust manufacturing and engineering capabilities. Corning Glass has become synonymous with strength, reliability, and cutting-edge design. Corning’s commitment to advancing materials science continues to drive innovation, inspiring the development of next-generation solutions that shape the future of industries and improve the way we interact with technology.
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