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Other Chemicals

SILICA GEL

Cas No.: 112926-00-8
Molecular Formula: xSiO2·yH2O
Molecule Weight: 60.08

Where to buy SILICA GEL ?

pce

Characteristic:
Silica gel (Silica gel; Silica) alias: Silica gel is a highly active adsorption material, which is an amorphous substance. Its chemical formula is xSiO2·yH2O; it does not react with any substance except strong alkali and hydrofluoric acid. It is insoluble in water and any solvent, non-toxic, tasteless, and chemically stable. Various types of silica gel form different microporous structures due to different manufacturing methods. The chemical composition and physical structure of silica gel determine that it has many characteristics that other similar materials are difficult to replace: high adsorption performance, good thermal stability, stable chemical properties, and high mechanical strength. According to the size of its pore size, silica gel is divided into: macroporous silica gel, coarse pore silica gel, B-type silica gel, fine pore silica gel, etc.

Safety information:
The main component of silica gel is Silicon Dioxide, which is chemically stable and does not burn. Silica gel is a kind of amorphous silicon dioxide. The dust content in the workshop should be controlled to be no more than 10 mg/m3, ventilation should be strengthened, and a mask should be worn during operation.
Silica gel has a strong adsorption capacity and can produce a drying effect on human skin. Therefore, you should wear work clothes during operation. If silica gel gets into the eyes, rinse with plenty of water and seek medical treatment as soon as possible.
Because blue silica gel contains a small amount of cobalt chloride, it is potentially toxic. Avoid contact with food and inhalation. In case of poisoning, you should seek medical treatment immediately.

Product Categories
A type Silica gel(Narrow pole Silica gel)
Silica Gel cat little
Silica gel desiccant

 

(1) A type Silica gel (Narrow pole Silica gel) Spherical 2-4mm or 3-5mm

SILICA GEL

Specification:

Items

Standard

Appearance

 Granule, Transparent, Translucent

 
Adsorption Capacity %

RH=20%  %

8.0MIN

RH=50%  %

20.0MIN

RH=90%  %

30.0MIN

PH (PH Value)

4-8

Specific Resistance , Ω.cm   

3000MIN

Silica %   

98MIN

Bulk Density,g/l  

760MIN

Qualified Ratio of Spherical Granules %                  

90MIN

Loss on Heating %  

5MAX

Usages:
Mainly used for drying, moisture-proof, also can be used as catalyst carrier, adsorbent, separating agent, and pressure swing adsorption, color-changing silica gel raw materials, etc.
Silica gel can be used as a desiccant and can be reused. Silica gel is a porous material with different particle sizes formed by proper dehydration of silicic acid gel mSiO2·nH2O. It has an open porous structure, a large specific surface (surface area per unit mass), and can adsorb many substances. It is a good desiccant, adsorbent and catalyst carrier. The adsorption of silica gel is mainly physical adsorption, which can be regenerated and reused. Add acid to the alkali metal silicate (such as sodium silicate) solution to make it acidified, and then add a certain amount of electrolyte to stir to form silicic acid gel; or add acid or Ammonium salts can also generate silica gel. Let the silicic acid gel stand for a few hours to age it, then wash it with hot water to remove the soluble salts, dry it at 60~70℃ and activate it at about 300℃ to get silica gel. The silicic acid gel is soaked in a cobalt chloride solution and then dried and activated to obtain color-changing silica gel. When it is used as a desiccant, it is blue before absorbing water, and turns red after absorbing water. From the change of color, we can see the degree of water absorption and whether it needs regeneration treatment. Silica gel is also widely used in steam recovery, petroleum refining and catalyst preparation

Storage and packaging:
Silica gel has strong moisture absorption capacity, so it should be stored in a dry place, with a shelf between the package and the ground. Packaging materials include steel drums, paper drums, cartons, plastic bottles, polyethylene plastic composite bags, flexible container bags, etc. Avoid rain, moisture and exposure during transportation.

Silica Gel

(2) Silica Gel cat little

Silica Gel cat little

Specification:

Item

 Standard

Size

1--8 MM

Appearance

White lump or Color

Qualified ratio of granular %

90min

Loss on heating %

5max

Bulk Density,g/l   

 400min

Pore volume, ml/g

0.76min

Properties:
Silica gel has a large amount of microporous structure inside, which has strong adsorption capacity for water vapor and various peculiar smells. Silica gel cat litter is refined and processed using this characteristic of silica gel. Silica gel cat litter is a new and ideal pet waste cleaner, which has unparalleled excellent characteristics of cat litter such as clay.

Usages:
The use of silica gel as cat litter is a major change in the cat litter industry in recent years. The main component of silica gel cat litter is silica, which is non-toxic and non-polluting. It is a green and environmentally friendly product for household use. Just dig a hole and bury the used cat litter. The appearance of silica gel cat litter is white granular, light weight, low breakage, and can inhibit the growth of bacteria. After the product was put on the market, it was immediately welcomed by consumers in Europe, America, Japan and other countries.

(3) Silica gel desiccant

Silica gel desiccant

Properties:
This product is processed with fine-pored silica gel, which is composed of sodium silicate and sulfuric acid hydrous silica gel. It is a highly active adsorbent. Glassy transparent, translucent and light yellow spherical or hemispherical particles.

Usages:
Medicines, machinery, optical electronics, precision instruments, meters, seeds, containers, processed foods, tea, various chemical fiber textiles, leather shoes, leather, sports shoes and cultural relics, photographic grades, arts and crafts, etc. All need to be moisture-proof and mold-proof. The items are widely used.




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