Question

What is the function of an Erlenmeyer flask?

Answer 1

The tapered sides and narrow neck of this flask allow the contents of the flask to be mixed by swirling, without risk of spillage, making them suitable for titrations. Such features similarly make the flask suitable for boiling liquids. Hot vapors condense on the upper section of the Erlenmeyer flask, reducing solvent loss. Erlenmeyer flasks' narrow necks can also support filter funnels.

The last two attributes of Erlenmeyer flasks make them especially appropriate for recrystallization. The sample to be purified is heated to a boil, and sufficient solvent is added for complete dissolution. The receiving flask is filled with a small amount of solvent, and heated to a boil. The hot solution is filtered through a fluted filter paper into the receiving flask. Hot vapors from the boiling solvent keep the filter funnel warm, avoiding premature crystallization.

Erlenmeyer flasks are also used in microbiology for the preparation of microbial cultures. Plastic Erlenmeyer flasks used in cell culture are sterilized and feature closures and vented closures to enhance gas exchange during incubation and shaking.

(source: wikipedia)

Answer 2

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