A Vacuum Glove Box is a chamber erected by the
construction of two Pyrex tubes that are sealed at their bottom ends. As the
vacuum is created, any gaseous molecules will flow from one of the tubes to
another until there is equilibrium in pressure between the two ends of the
glass tubes. This vacuum pump-out process can be done without exposing any
glass tube to atmospheric pressure. Vacuum pumps are standard equipment in
laboratories for evacuating chambers so that an experiment can be carried out
in a controlled condition of low ambient pressure or a high degree of vacuum.
How
to use it?
Vacuum
Glove Box is usually used in labs where various chemicals are
to be exposed to a high vacuum. The tube is sealed at the bottom by a rubber
gasket and at the top by the lid. A source of inert gas (usually nitrogen) is
connected to one end of the tube and through a valve that controls flow can be
connected to the other end. The gasket seals both ends of the tube and prevents
accidental spillage of gas into the laboratory environment.
The purpose is to lower pressure inside an enclosed
chamber, which can then be subjected to even higher levels of vacuum by
connecting it to a larger vacuum pump system. You can get a vacuum glove box
at a reliable price from Global Lab Supply.
Easy
to maintain:
Vacuum glove boxes are very easy to maintain. If the
outside chamber gets contaminated due to simple wear and tear or broken seals,
it is possible to simply exchange new gaskets. Vacuum glove boxes are very easy
to transport and maneuverability, making them the go-to idea for those working
in hazardous areas. You can save your space by fitting one in your lab bench
instead of two regular bench tops.
Improved
accuracy:
Different gases have different boiling points. This
can cause errors when performing chemical analysis through gas chromatography
(GC). Dividing a sample into two chambers, one filled with nitrogen and the
other with argon or helium can significantly improve accuracy. Most 1 m long
vacuum glove boxes are sold as complete units containing all components,
including valves and fittings. You need to look for those that include the necessary
accessories to match your needs such as the requirements of your analytical
chemistry instruments and chemical analyses.
Cost-effective:
Vacuum glove boxes cost less than normal equipment,
so they are suitable for purchase from small, private laboratories. They can
also be bought as a service rather than purchased as individual components. You
can add extra accessories and also choose the most suitable sizes, which will
depend on the total volume of any particular gas that you are interested in
working with, whether it is air or other gases.
Transparent:
One of the most important features of a vacuum glove
box is its visibility. All the glass walls and doors combine to give a view
that is both safe and easy for viewing experiments. The transparent viewing
chamber is made of very strong glass so that it can withstand a high vacuum. It
also gives the user a chance to see how different reactants behave when exposed
to different levels of atmosphere pressure, temperature, and heating.
Finding:
Vacuum glove boxes are the most cost-effective way
of maintaining low-pressure conditions in your lab or workplace, which makes
them popular amongst chemists who want to perform experiments under relatively
harsh conditions without exposing their samples to uncontrolled pressures in
their lab environment. The many accessories and safety features are very
important for labs that work with electronic instruments and chemical
compounds.
Impact
resistant:
The ability of vacuum glove boxes to withstand
extreme pressure and temperatures makes them ideal for a variety of
applications. Vacuum glove boxes provide the ideal safety barrier between
sensitive instruments and a hostile environment, which could result in damage
or malfunction. These boxes are also widely used for plasma etching, which is
where thin films are etched away from highly heat-resistant metals like aluminum
and tungsten. They can be used to replace glass flasks if you want to take
samples in an atmosphere that is different from your own because there is no
risk of contamination.
Light-weight:
Vacuum glove boxes are lightweight so they can be
easily moved around the lab. They can also take up less space than standard
equipment because not all gas cylinders need to be present to create a high
vacuum inside the working chamber. These boxes can sometimes be purchased with
an attached table top for easy access, or you may wish to place them on their
own in your work area.
Conclusion:
These boxes are ideal for use in any laboratory environment
where extreme conditions need to be recreated quickly and easily, ensuring that
there is no risk of contamination. In some cases, they have replaced glass
flasks altogether because they offer the same degree of protection and safety while
being much more compact and easier to store.
Original
Sources: https://www.fuzia.com/article_detail/684021/some-benefits-of-using-vacuum-glove-box
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