Isolab Flask, Spherical/Boiling, Flat Bottom, 1000ml, Clear, European Borosilicate Glass, 131mm Approximate Diameter, Each
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Round-bottom flasks (also called round-bottomed flasks, Flasks, round bottom, or R B Flasks) are types of flasks having spherical bottoms used as laboratory glassware, mostly for chemical or biochemical work. They are typically made of glass for chemical inertness; and in modern days, they are usually made of heat-resistant borosilicate glass. There is at least one tubular section known as the neck with an opening at the tip.