Boiling Flasks, Flat Bottom

Photo of Corning 4100 PYREX® Short Neck Flat Bottom Boiling Flasks with 24/40 Standard Taper Joint

These PYREX® flat bottom boiling flasks have full length outer 24/40 TS joints, but with shorter necks. 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 Adapter Nos.

Photo of Kimble 25055 KIMAX Flat Bottom Short Boiling Flasks with Short Neck and 24/40 Joint

Kimble 25055 KIMAX Flat Bottom Short Boiling Flasks with Short Neck and 24/40 Joint. Designed from ASTM Specification E 1403, Type I, Class 4 requirements.

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Photo of KIMBLE® 25057 KIMAX® RAY-SORB® Flat Bottom Short Neck Boiling Flask with Full Length 24/40 Joint

KIMBLE® 25057 KIMAX® RAY-SORB® Flat Bottom Short Neck Boiling Flask with Full Length Standard Taper 24/40 Joint. RAY-SORB® process provides protection to solutions sensitive to light of the shorter wavelengths. Less than 1% transmission below 400nm and approximately 5% transmission from 400-600nm. Designed from ASTM Specification E1403, Type I, Class IV requirements.

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