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Calcium chloride and silica granules are water absorbents. These compounds are recyclable by heating.

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Q: Why CaCl2 or silica is placed in desiccator Why should it be dried occasionally?
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What is the silica percentage in dm water?

If its been demineralized there should be barely any silica or trace of silica in it.


Does cheese contain silica?

Cheese should not (and does not normally) contain silica.


Is silica a vitamin?

No. Silica, or silicon dioxide, is not a vitamin and should not be consumed by humans or animals.


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


Why is silica gel not edible?

Silica gel is not edible because it is hard and tough. It also has other chemicals added to it that should not be eaten. The silica gel itself is not toxic.


What is Bullionism?

Bullionism is a term from the 15th century. It is when all value of currency is placed on the actual gold or silver.


What should you do if you eat silica gel?

You cannot eat Silica Gel because it is not food. Silica Gel is a non-toxic substance that is used to absorb moisture. The reason packets of Silica Gel are labeled "Do Not Eat" is because they pose a choking hazard.


Why is silica should be avoided by lupus patients?

Silica stimulates the immune system. People with lupus already have an overactive and confused immune system. Lupus is treated with immunosuppressive drugs. Silica does just the opposite.


Should a kid be able to play with silica jell?

No, while colorless silica gel is non-toxic, the dopants used as color moisture indicator in silica gel (such as cobalt (II) chloride) are carcinogens and are quite toxic.


Does Hawaii experience effusive or explosive eruptions?

Occasionally, yes. Most of Kilauea's eruptions are effusive, however.


How is the silicon applied to the silicon bracelets?

Silica is placed into an electric furnace along with coal, wood, or charcoal. The reaction of the two creates silicon. The Silicon is then placed into a desired mold and cooled, creating the silicon bracelet.


How do silica tetrahedra bond in silicate minerals?

they bond the silica tetrahedron exist as single units bonded to positively charged ions