Single Neck Pear Flask - (24/40) Made of Borosilicate

The Single Neck Pear Flask 24/40 listing provides five borosilicate laboratory flask sizes: 250 milliliters, 500 milliliters, 1,000 milliliters, 2,000 milliliters, and 3,000 milliliters. Each option combines a pear-shaped vessel body with a single 24/40 ground-glass joint for integration into compatible heating, mixing, reaction, receiving, and distillation assemblies.

Using the same joint designation across the available sizes can simplify component selection when changing vessel capacity. Compatible condensers, adapters, receivers, and stoppers should also use a 24/40 connection. Always verify joint size and orientation before assembly and never force ground-glass components together.

Select flask capacity according to the working volume and headspace required by the procedure rather than simply choosing the largest vessel. Borosilicate glass provides useful thermal characteristics and resistance to many chemicals, while suitability depends on the specific material, temperature, heating method, pressure conditions, and complete process. The pear geometry also differs from a conventional round-bottom flask and may suit particular apparatus layouts.

Inspect every Single Neck Pear Flask 24/40 before use for chips, cracks, deep scratches, impact damage, or defects around the joint. Damaged glassware should not be heated or used under reduced pressure. Use suitable stands, clamps, holders, or heating equipment, and independently support connected components when their weight could stress the neck.

Choose the Single Neck Pear Flask 24/40 size that best fits your apparatus and working volume. Compare other flask shapes and joint configurations in our Borosilicate Flasks collection.

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Frequently Asked Questions

Which capacities are offered?
The listing offers 250, 500, 1,000, 2,000, and 3,000 milliliters borosilicate pear flasks with a single 24/40 joint. Confirm the selected variant.

Will any 24/40 component fit?
Match the joint size and complementary orientation, then check actual fit. Support attached components so they do not strain the flask neck.

Does borosilicate glass establish operating limits?
No. Confirm chemical compatibility and documented temperature, pressure, or vacuum limits for the complete setup. Inspect glass for damage before use and choose support and heating equipment that physically fits.