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Desiccator are sealable enclosure containing desiccants for preserving moisture
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∙ 10y ago
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What is a desiccator most commonly used for?
A desiccator is commonly used to extract water from various articles of clothing. Also, if you manage to get your phone wet, you can use a desiccator to remove it.
Why is a desiccator used to cool a crucible?
A desiccator is used to cool a crucible in order to prevent the absorption of moisture during the cooling process so an accurate result can be obtained
How do you take care of desiccator?
Check
Why must The Crucible by Arthur Miller be cooled in a desiccator?
it must be cooled in the desiccator in order to take the correct measurement on the scale while performing the experiment.
What laboratory apparatus can keep 100 grams of a compount from absorbing atmospheri moisture?
The laboratory apparatus that can keep 100 grams of a compound from absorbing atmospheric moisture is a desiccator. A desiccator is a glass container or apparatus that is used mainly for drying and preventing moisture from the specimen.
Who long you can left the simple in the desiccator?
I think you should resubmit this question as How long can you leave a sample in a desiccator? and it would help if you gave information about what sample you are putting in.
Why should the dried sample be kept in desiccator for cooling?
If a dried sample is warm, it will absorb water from the air while cooling. Placing it in a desiccator puts it in a dry atmosphere where no moisture is available to be absorbed from the air.
Why should the edge of the lid of a desiccator be greased?
The purpose is to assure a perfect sealing.
What is a desiccant?
The definition of desiccant is a substance that has hygroscopic properties. It is a drying agent, and it will remove moisture from the air. Desiccants are often packaged with moisture-sensitive products to make sure they have a dry atmosphere.
Why CaCl2 or silica is placed in desiccator Why should it be dried occasionally?
Calcium chloride and silica granules are water absorbents. These compounds are recyclable by heating.
Why is it best to use a desiccator for cooling of the crucible and lid after heating?
The purpose is to avoid absorption of water vapors, CO2, H2S, dust, etc.
Can you give me a technical description of a desiccator?
Here is a description of the function of a desiccator, this is about as technical as it gets Desiccators are sealable enclosures containing desiccants used for preserving moisture-sensitive items. A common use for desiccators is to protect hygroscopic (Water Attracting) items such as honey, glycerin, ethanol, methanol; from humidity. In laboratory use, the most common desiccators are circular, and made of heavy glass although plastic desiccators such as polycarbonate are available. There is usually a removable platform on which the items to be stored are placed. The desiccant, usually an otherwise-inert solid such as silica gel, fills the space under the platform. By selecting different drying agents for the lower chamber, the humidity in the desiccator can be adjusted from very moist to bone dry. This will enable samples kept inside to be held at the optimum humidity for the application at hand. The high surface area of silica gel absorbs any moisture present within the chamber, thus keeping the items dry. A stopcock (Valve / tap) may be included to permit the desiccator to be evacuated. (Air removed) Such models are usually known as vacuum desiccators. To maintain a good seal, vacuum grease is usually applied to the flanges. Once the air is pumped out, the stopcock on the desiccator can be turned to seal it off from the pump and thereby retain the interior vacuum. When the stored samples are required, the stopcock is rotated to allow entry of air (or an inert atmosphere) thereby making it possible to open the formerly evacuated chamber. This kind of desiccator is almost always used when the samples to be stored must be kept as dry as possible or if the stored samples could be harmed by contact with air. xcen>fr RGoogle
