What is a vacuum desiccator?

Vacuum desiccators remove air and moisture with the use of an in-house laboratory vacuum or vacuum pump and can be brought back to vacuum easily after opening. Vacuum desiccators can also be used for degassing techniques.

What is the main function of a desiccator?

Desiccators are sealable enclosures containing desiccants used for preserving moisture-sensitive items such as cobalt chloride paper for another use. A common use for desiccators is to protect chemicals which are hygroscopic or which react with water from humidity.

What is a desiccator chamber?

Desiccators are the most basic of the four options. They are primarily used to store and dry moisture-sensitive and low-humidity samples. The desiccant placed within the canister absorbs water vapor from reactants that are hygroscopic. Vacuum employs a vacuum pump to remove air and moisture.

What does desiccator mean?

noun. an apparatus for drying fruit, milk, etc. Chemistry. an apparatus for absorbing the moisture present in a chemical substance. an airtight, usually glass container containing calcium chloride or some other drying agent for absorbing the moisture of another substance placed in the container.

Why is a desiccator important?

Let’s review. Desiccators are important for drying reactants prior to their use in chemical reactions. They are usually sealed air-tight to prevent water vapor from entering, and contain a desiccant in order to absorb any water vapor that does enter the chamber.

How does vacuum desiccator work?

Vacuum desiccators remove air and moisture with the use of an in-house laboratory vacuum or vacuum pump and can be brought back to vacuum easily after opening. Gas ported desiccators are available for desiccation with gases such as argon and nitrogen to achieve ultra-dry environments.

What is the principle of desiccator?

The first method is to remove moisture inside the desiccator to prevent moisture from damaging moisture sensitive samples such as electronics and chemical samples that may react to moisture. The second method is to preserve the moisture level inside the chamber and protecting a biological and carbon dating samples.

How does desiccator chamber work?

Our desiccators are designed to lower the humidity level, down to 0% RH, inside a cabinet to prevent moisture from damaging the sample being stored. We achieve 0% RH by introducing a desiccant, Nitrogen (N2), into the chamber. Nitrogen serves as an inert gas to replace air where oxidation is not needed.

Does desiccant work in a vacuum?

Conventional desiccants like silica gel or calcium sulfate work like a sponge to remove moisture from the air. Vacuum desiccation works by removing the air from the desiccator, creating a vacuum. No air = no moisture.

Why is it important to use a desiccator?

Desiccators provide an inert gas environment for storing volatile chemicals. They can also be used for slow, controlled drying, and are available with customized heating capabilities. Use of a nitrogen or other inert process gas eliminates reactions caused by oxygen exposure.

Where can I get a VWR vacuum desiccator?

Description: These high-quality vacuum desiccators stay gastight allowing reliable dry storage or experiments over extended periods. This product is no longer available. Alternatives may be available by searching with the VWR Catalog Number listed above. If you need further assistance, please call VWR Customer Service at 1-800-932-5000.

What is the purpose of a desiccator cabinet?

Desiccators create and maintain dry environments to ensure sample stability. Using absorbing beads, and other desiccants, desiccator cabinets or apparatuses quickly absorb moisture, guaranteeing sensitive materials do not react to surroundings prior to testing. Vacuum compatible models accelerate drying of interior conditions.

What’s the phone number for the VWR catalog?

Alternatives may be available by searching with the VWR Catalog Number listed above. If you need further assistance, please call VWR Customer Service at 1-800-932-5000. The minimum order for this item is .

Which is the best description of a desiccator?

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