Erlenmeyer Flasks
Erlenmeyer Flasks - Related Videos
08:39
Scale-Up of Mammalian Cell Culture using a New Multilayered Flask
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Cited by 4 •
2011
Cells play an instrumental and increasing role in research, and the discovery and development of new therapeutics. With this increasing need for greater number of cells we need more efficient and effective ways for growing and harvesting attachment dependent cells. A Multilayered flask with the right features can serve this purpose.
03:08
Basic Organic Chemistry Techniques - Concepts
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2020
Glassware in Organic Chemistry There are standard pieces of glassware that are used in the organic chemistry lab. Beakers and Erlenmeyer flasks are typically used for simple mixing or to hold solvents but they should not be used to measure volume, unless only an approximate volume is needed. Glassware can be divided into the following categories: Volumetric Glassware – This includes glassware such as graduated cylinders, volumetric glass pipettes, and volumetric flasks. The purpose of these...
05:17
Acid and Base Concentrations - Instructor Prep
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2020
Source: Smaa Koraym at Johns Hopkins University, MD, USA Preparation of ReagentsExpand Here, we show the laboratory preparation for 10 students working in pairs, with some excess. Please adjust quantities as needed. Prepare 25 mL of 50% w/w NaOH solution. Weigh 25 g of NaOH pellets and add them to a 125-mL Erlenmeyer flask. Measure 25 mL of deionized water and add it to the flask. Add a magnetic stir bar and mix the solution on a stir plate until the solution appears...
12:47
Ideal Gas Law - Student Protocol
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2020
Source: Smaa Koraym at Johns Hopkins University, MD, USA Determining the Mass of the Unknown LiquidExpand According to the ideal gas law for a given pressure, temperature, and volume, the number of moles of gas in that volume is always the same. In this lab, you will use that relationship to calculate the molar mass of an unknown liquid. You will immerse a Dumas tube containing the unknown liquid in boiling water to vaporize the solvent. After waiting a few minutes for the vapor to...
08:13
Microwave-driven Synthesis of Iron Oxide Nanoparticles for Fast Detection of Atherosclerosis
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Cited by 2 •
2016
Microwave technology enables extremely fast synthesis of iron oxide nanoparticles for atherosclerosis plaque characterization. The use of an aminobisphosphonate in the external side of the nanoparticle provides a fast accumulation in the atherosclerotic area.
FAQs
The broad base provides room for liquid to move as the flask is gently swirled, while the narrowing neck helps keep the moving solution contained. This combination permits mixing with less splashing than in straight-sided containers. It is especially useful when a solution must be blended during preparation or while a chemical reaction is taking place.
A narrow opening helps limit evaporation and reduces opportunities for contamination compared with a more exposed container. It can also accommodate stoppers or other laboratory equipment, allowing the flask to be temporarily covered or connected to another component. These features make the vessel useful when solutions need controlled handling between preparation steps or observations.
The stable base helps the flask remain steady on a laboratory surface, while the accessible opening permits liquids to be added, mixed, or handled with laboratory equipment. Together, these features support controlled manipulation without sacrificing the ability to swirl the contents. Their combination is valuable in procedures that require both secure placement and active liquid movement.
During solution preparation, liquids can be placed in the flask and mixed by swirling, using the broad base and conical interior to support movement with reduced splashing. The opening remains available for adding materials or using equipment, while the narrow neck helps limit evaporation and contamination. The flask therefore supports both active mixing and short-term handling of the prepared solution.
Their stable base helps keep the vessel positioned during titration, while the accessible opening allows the solution to be handled with laboratory equipment. The flask can also be swirled to mix contents with less splashing than in a straight-sided container. These features support controlled solution handling during a procedure in which mixing and secure placement are both important.
An Erlenmeyer flask is appropriate when a procedure benefits from a stable vessel, contained swirling, and an opening that can accept a stopper or other equipment. These characteristics support chemical reactions, crystallization, and temporary storage of liquids. The available sizes and materials allow the vessel to be selected according to the needs of a particular laboratory procedure.