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A spherical vessel with a narrow neck.
Also known as: Round bottomed flask, Boiling flask
A round-bottom flask is drawn as a sphere with a narrow neck rising from it, its shape distributing heat and pressure evenly and requiring a stand or clamp to sit upright.
Denotes a spherical flask with a narrow neck, used where contents are heated or held under reduced pressure.
Contexts: Laboratory
Cannot stand unsupported, which is why a diagram containing one always contains a stand, clamp or cork ring as well.
Contexts: Laboratory
A circle representing a sphere, with a narrow cylindrical neck rising from its top.