Bell - Jar (200-300)
A Bell Jar is a cylindrical glass jar with a lifting device that creates a vacuum inside. It’s used for scientific experiments and procedures that require a vacuum environment to prevent contamination or observe sample behavior. It’s made of borosilicate glass, has a metal base, requires a vacuum pump, and may have a valve and additional features like electrical ports or viewing windows.
A Bell Jar is a piece of laboratory equipment that consists of a cylindrical glass jar with a flat bottom and a lifting device, typically made of metal, that allows for the creation of a vacuum inside the jar. The bell jar is used in scientific experiments and procedures where a vacuum environment is needed to prevent contamination or to observe the behavior of a sample in a low-pressure environment.
Some specifications of a Bell Jar may include:
- Material: The jar is typically made of borosilicate glass, which is resistant to thermal shock and chemical corrosion.
- Dimensions: The Bell Jar can vary in size, but a standard size is around 9 inches (23 cm) in diameter and 12 inches (30 cm) in height.
- Base: The base is typically made of metal, with a flange that secures the jar to the base and allows for a vacuum-tight seal.
- Vacuum Pump: A vacuum pump is required to create and maintain the vacuum inside the jar.
- Valve: A valve is typically located on the top of the jar to allow for the release of air and the introduction of gases or other substances.
- Accessories: Some Bell Jars may include additional features such as ports for electrical connections or viewing windows to observe samples inside the jar.
Overall, the Bell Jar is a versatile piece of laboratory equipment that is essential for many scientific experiments and procedures that require a vacuum environment.
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