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Boiling Round Bottom 50mL Wide Neck Flask, Beaded Rim, Borosilicate Glass - Eisco Labs, Pack of 12

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  • Pack of 12 50mL round bottom, wide neck boiling flasks made of lab-grade borosilicate 3.3 glass
  • Inside diameter of mouth is 1-1/8"
  • Diameter of flask bulb is 2"
  • Thick beaded rim
  • Used to hold liquid for heating/boiling or distillation

This 50mL round bottom boiling flask is made from high-quality borosilicate glass appropriate for lab and classroom use. The inside diameter of the flask neck is 1-1/8", and the full bulb diameter is 2". Often used for boiling/heating liquids evenly, these flasks are commonly used in distillation setups. This flask is round on the bottom, and is most effective when held upright by a clamp on a stand, or placed in a cork ring on a level surface.