Magnetic Stirrer

What is a Magnetic Stirrer Used For?

In the realm of laboratory equipment, the magnetic stirrer holds a crucial role in facilitating efficient and homogeneous mixing of liquid substances. This device utilizes a rotating magnetic field to generate a stirring action, eliminating the need for manual stirring and providing consistent agitation.

Magnetic stirrers find extensive applications in various scientific fields, including chemistry, biology, pharmaceuticals, and research laboratories. They are particularly useful when working with solutions that require thorough mixing, temperature control, or the addition of reagents during experiments. Additionally, magnetic stirrers are commonly used in quality control processes, sample preparation, and small-scale production.

What is the Price of Magnetic Stirrer 500 ml?

The price of a magnetic stirrer can vary depending on several factors, such as brand, features, capacity, and additional accessories. Specifically, for a magnetic stirrer with a 500 ml capacity, the price range typically falls between $50 to $200, depending on the manufacturer and the specific model’s features.

It’s important to consider that higher-end magnetic stirrers may have advanced features such as digital displays, adjustable speed settings, and additional safety features. These factors can contribute to the price variation. Furthermore, the availability of the product, market demand, and any promotional offers may also influence the final price.

When purchasing a magnetic stirrer, it is advisable to consider the specific requirements of your laboratory or application, balancing the desired features, budget constraints, and long-term durability to make an informed decision.

What is the Working Principle of Magnetic Stirrer?

The working principle of a magnetic stirrer involves the interaction between a rotating magnetic field and a magnetic stir bar placed within the liquid sample. The stir bar, typically made of PTFE or coated with PTFE, contains a small magnet sealed within its cylindrical body.

When the magnetic stirrer is activated, an external rotating magnetic field is generated by a motor located beneath the stirring platform. The rotating magnetic field induces a corresponding rotational motion in the magnetic stir bar. As a result, the stir bar spins, creating a vortex within the liquid, promoting mixing and agitation.

The stirring speed of the magnetic stirrer is controlled by adjusting the rotational speed of the motor. This allows for precise control of the mixing intensity, accommodating different viscosities and sample volumes. Some magnetic stirrers also feature additional functions, such as programmable timers, heating capabilities, or the ability to measure and control parameters like temperature or pH.

What is the Highest RPM of a Magnetic Stirrer?

The maximum revolutions per minute (RPM) of a magnetic stirrer can vary depending on the model and manufacturer. In general, magnetic stirrers have a wide range of RPM settings to accommodate different mixing requirements.

Standard magnetic stirrers typically offer a speed range of around 100 to 2,000 RPM. However, more advanced models can provide even higher RPM settings, reaching up to 3,000 or 5,000 RPM. These higher speeds are advantageous when working with viscous liquids or when a more vigorous mixing action is desired.

It’s important to note that the RPM range of a magnetic stirrer should be suitable for the specific application or sample being mixed. Some applications may require slower stirring speeds for delicate or sensitive samples, while others may benefit from higher speeds to achieve efficient mixing.

When selecting a magnetic stirrer, it is essential to consider the required RPM range based on the nature of the samples and experiments that will be conducted in the laboratory. Additionally, it is recommended to review the specifications and performance capabilities of different models to choose a magnetic stirrer that meets the specific needs of the laboratory.

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