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Conical flask

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Conical flask, also known as an Erlenmeyer flask, is a type of laboratory glassware commonly used in chemistry laboratories for holding, mixing, and heating liquids. It has a conical shape with a flat bottom, a cylindrical neck, and a narrow opening. The conical shape allows for easy swirling and mixing of liquids without splashing, and the narrow neck minimizes evaporation and allows for the attachment of various laboratory apparatus such as stoppers, funnels, or tubing. Conical flasks are typically made of borosilicate glass, which is resistant to thermal shock and chemical corrosion. They come in various sizes, ranging from small volumes for experiments to larger sizes for industrial applications.

 

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Conical flask

  1. Mixing and Storing Liquids: Conical flasks are commonly used for mixing, storing, and transporting liquids. Their conical shape allows for efficient swirling and mixing without splashing.
  2. Titration: They are often used in titration experiments where precise measurements and controlled mixing of reagents are essential.
  3. Culturing Microorganisms: In microbiology, conical flasks are used for culturing microorganisms such as bacteria, yeast, and fungi. The shape of the flask provides a large surface area for aeration and growth.
  4. Preparation of Solutions: Conical flasks are used for preparing solutions of known concentrations by accurately measuring and mixing the required quantities of solutes and solvents.
  5. Heating: They are suitable for heating liquids over a Bunsen burner or on a hot plate due to their flat bottom and sturdy construction. However, caution must be exercised to avoid thermal shock.
  6. Filtration: Conical flasks are often used in filtration setups where a vacuum is applied to draw a liquid through a filter paper or membrane.
  7. Storing Chemicals: They can be used to store chemicals temporarily, especially when a stopper or airtight lid is applied to the neck of the flask.
  8. As a Reaction Vessel: Conical flasks can serve as reaction vessels for various chemical reactions, particularly those that require gentle mixing or temperature control.
  9. Extraction: They are used in extraction processes, such as solvent extraction or liquid-liquid extraction, where components of a mixture are separated based on their solubility in different solvents.
  10. Distillation: While not as common as round-bottom flasks for distillation setups, conical flasks can be used in certain distillation procedures where the shape of the flask is not critical.
SKU: ACS85596CHEM0 Category:
  1. Proper Handling: Always handle conical flasks with care, especially when they contain chemicals or are subjected to heat. Hold them firmly by the neck or base to prevent dropping or spilling.
  2. Protective Gear: Wear appropriate personal protective equipment (PPE) such as safety goggles, lab coat, and gloves to protect against chemical splashes, spills, and other hazards.
  3. Inspect for Damage: Before use, inspect the conical flask for any cracks, chips, or other damage. Damaged glassware can break unexpectedly, leading to spills or injuries.
  4. Use a Support: When heating a conical flask over a Bunsen burner or hot plate, always use a suitable support such as a wire gauze or flask holder to prevent direct contact with the heat source and minimize the risk of breakage.
  5. Avoid Rapid Temperature Changes: Glassware, including conical flasks, is susceptible to thermal shock, which can cause it to crack or shatter. Avoid sudden temperature changes, such as placing a hot flask on a cold surface or adding cold liquids to a hot flask.
  6. Use a Safety Shield: When heating or conducting experiments with volatile or hazardous chemicals, use a safety shield or fume hood to contain any potential splashes or releases of harmful vapors.
  7. Secure Stopper: If using a stopper or cork in the neck of the conical flask, ensure it fits securely but can still be easily removed if pressure builds up inside the flask.
  8. Avoid Overfilling: Do not overfill conical flasks, as this can cause spills or splashes when mixing or swirling liquids. Leave some headspace to allow for expansion or bubbling during reactions.
  9. Handle Chemicals Safely: Follow proper procedures for handling, storing, and disposing of chemicals. Be aware of the hazards associated with the chemicals being used and take appropriate precautions to minimize exposure.
  10. Emergency Procedures: Know the location of safety equipment such as eyewash stations, safety showers, fire extinguishers, and emergency exits. Familiarize yourself with emergency procedures in case of accidents or spills.

Based on 5 reviews

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  1. Sippy –

    Convenient design for efficient mixing and observation.

    Sippy –

  2. Mawero –

    Conical flask is fantastic! It’s sturdy, well-designed, and perfect for a variety of laboratory experiments. Highly recommend for its reliability and versatility.

    Mawero –

  3. Carol –

    I highly recommend conical flasks for any laboratory setting.

    Carol –

  4. Nigel –

    Easy navigation

    Nigel –

  5. Felly –

    Used to hold the solution to be titrated

    Felly –

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