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Pyrex® 4320-250
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Pyrex® Round Bottom Short Neck Boiling Flask with Standard Taper Joint, 250 ml

Boiling Flask, 250 ml, 83 OD x 140 mm H, Borosilicate Glass, Round Bottom Type, 24/40 Standard Taper Joint, Short Neck Style, Autoclavable, Reusable

  • Manufacturer Part No: 4320-250
  • SECO Part No: COR-4320-250
  • Sold As:
  • Availability: loading

These 250 ml Pyrex® round bottom boiling flasks have full length outer 24/40 standard taper joints, but with shorter necks. They are carefully designed and manufactured from Number 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. Adapter Numbers 8800, 8820 and 8825 are used to connect flasks with different size joints, thus allowing numerous combinations for diverse assemblies. These flasks are replacement parts for organic chemistry kits Number 6949.

Capacity : 250 mL
Height : 140 mm
Diameter : 83 mm OD
Material : Borosilicate Glass
Bottom Type : Round
Stopper Type : Without Stopper
Standard Taper Joint : 24/40
Neck Type : Short
Autoclavable : Yes
Flask Style : Boiling
Reusable : Yes

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