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  • Erlenmeyer Flask: Definition, Uses & Key Features | Lab Equipment
    An Erlenmeyer flask, also known as a conical flask, is a common piece of laboratory glassware shaped like a cone with a cylindrical neck. It is a versatile tool used for various tasks in chemistry and biology labs.

    Here's a breakdown of its features and functions:

    Features:

    * Conical shape: This allows for easy swirling and mixing of liquids without spilling.

    * Narrow neck: Prevents evaporation and minimizes contamination by reducing the surface area exposed to the air.

    * Flat bottom: Provides a stable base for the flask.

    * Graduations: Some Erlenmeyer flasks have markings on the side to measure liquid volume (although they are not calibrated for precise measurements).

    Functions:

    * Mixing and swirling liquids: The conical shape allows for efficient mixing of liquids by swirling the flask.

    * Heating liquids: The narrow neck reduces the risk of splashing during heating.

    * Holding and storing solutions: Its design makes it ideal for holding and storing solutions for longer periods.

    * Titrations: The narrow neck allows for precise control of the titrant during titration experiments.

    * Growing cultures: Some Erlenmeyer flasks are designed specifically for culturing microorganisms.

    * Other applications: It's also used for filtration, distillation, and other laboratory procedures.

    Advantages of an Erlenmeyer flask:

    * Versatile: It can be used for a wide variety of applications.

    * Durable: Made from borosilicate glass, which is resistant to thermal shock and chemicals.

    * Easy to clean: The smooth surface makes it easy to clean and sterilize.

    Note: While Erlenmeyer flasks are excellent for mixing and heating liquids, they are not designed for precise volume measurements. For accurate measurements, use graduated cylinders or volumetric flasks.

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