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White and Blue Silica Gel
White and Blue Silica Gel

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silica gel
Color:blue,white
bead form,size 1--2mm,1--3mm,2--5mm
supply over 30 kinds of silica gel
in different application

 

silica gel


Color:blue,white
bead form,size 1--2mm,1--3mm,2--5mm
supply over 30 kinds of silica gel
in different application

 

Supply Capability : 300,000MT/year

  

We regularly export Silica Gel in large quantity. We handle of a series of silica gel in different usages, such as for Column-layer Chromatography, thin-layer Chromatography,air drying, catalyst carrier, liquid drying,etc.We export the above items in in different size.We are the most competitor in the field of SILICA GEL. We also could supply the goods according to your specification.We also supply Silica Alumina Gel,Silicic Acid, etc.

 

 

Here is our product list :

 

1) FNG Silica Gel: Spherical Sharp, used for air drying in the air separating process for various industrial gases.

2) C Type Silica Gel: Translucent Spherical Sharp, used for drier, adsorbent & catalyst carrier.

3) B Type Silica Gel: Transparent Spherical Sharp, mainly used as liquid adsorbents, Struture lying between macro-pored and fine-pored silica gel.

4) Blue Silica Gel: Lumps or Spherical Sharp, After absorbing Moisture, it turns from blue to red, visually indicating the relative humidity of the given environments.

5) DL Blue Silica Gel: Lumps or Spherical Sharp, used as humidity indicator or drier in judging if the adsorption and drying process is up to the requirements.

6) Fine-Pored Silica Gel: Lumps or Spherical Sharp, used for drying and moisture-proof.

7) Macro-pored Silica Gel: Lumps or Spherical Sharp, used for moisture-proof packing and dehydration and purification of industrial gases.
8) Silica Gel (tablet): Used for moisture-proof for pharmaceutical and food industry.

9) Silica Gel for variable-pressure adsorption: Similar to fine-pored Silica gel, Its selective adsorptive capability is higher than fine-pored silica gel.

10) Silica gel for Column layer Chromatography: Since the amount of time, it takes to adsorb the various substance, it can achieve the separation and purification from the mixed components, used for refining petroleum and pharmaceutical industry.

11) Silica gel for thin layer Chromatography: Used for analysis and separation of various natural and synthetic substances.

12) Cat Sands(Cat litter): Used for pets, a ideal pet waste cleaner.

13) Silicic Acid: Used for fusion agent for processing tungsten filaments.

14) Silica Alumina Gel: Faint yellow molecular;
Formula: SiO2.Na2O3.mH2O; Used for dewatering of natural gas, adsorption and separation of light hydrocarbon.

15) Activated Silica Gel: Used for identifying poisonous and harmful gases for atmospheric monitoring & mining industry.

 

 

Package: 25kg bag or 25kg drums, or as your request

 

Application :

 

a.Desiccant

In many items, moisture encourages the growth of mold and spoilage. Condensation may also damage other items like electronics and may speed the decomposition of chemicals, such as those in vitamin pills. By adding packets of silica gel, these items can be preserved longer.

Silica gel may also be used to keep the relative humidity inside a high frequency radio or satellite transmission system waveguide as low as possible. Excessive moisture buildup within a waveguide can cause arcing inside the waveguide itself, damaging the power amplifier feeding it. Also, the beads of water that form and condense inside the waveguide change the characteristic impedance and frequency, impeding the signal. It is common for a small compressed air system (similar to a small home aquarium pump) to be employed to circulate the air inside the waveguide over a jar of silica gel.

Silica gel is also used to dry the air in industrial compressed air systems. Air from the compressor discharge flows through a bed of silica gel beads. The silica gel adsorbs moisture from the air, preventing damage at the point of use of the compressed air due to condensation or moisture. The same system is used to dry the compressed air on railway locomotives, where condensation and ice in the brake air pipes can lead to brake failure.

Silica gel is sometimes used as a preservation tool to control relative humidity in museum and library exhibitions and storage.


b.Chemistry
 
Chromatography columnIn chemistry, silica gel is used in chromatography as a stationary phase. In column chromatography the stationary phase is most often composed of silica gel particles of 40-63 μm. Different particle sizes are used for achieving a desired separation of certain molecular sizes. In this application, due to silica gel's polarity, non-polar components tend to elute before more polar ones, hence the name normal phase chromatography. However, when hydrophobic groups (such as C18 groups) are attached to the silica gel then polar components elute first and the method is referred to as reverse phase chromatography. Silica gel is also applied to aluminum, glass, or plastic sheets for thin layer chromatography.

The hydroxy (OH) groups on the surface of silica can be functionalized to afford specialty silica gels that exhibit unique stationary phase parameters. These so-called functionalized silica gels are also used in organic synthesis and purification as insoluble reagents and scavengers.

Chelating groups have also been covalently bound to silica gel. These materials have the ability to remove metal ions selectively from aqueous media. Chelating groups can be covalently bound to polyamines that have been grafted onto a silica gel surface producing a material of greater mechanical integrity. Silica gel is also combined with alkali metals to form a M-SG reducing agent.

Silica gel is not thought to biodegrade in either water or soil


c.Cat litter


Silica gel is also used as cat litter by itself or in combination with more traditional materials, such as clays including bentonite. It is trackless and virtually odorless, albeit expensive. Silica in this form can be a cost effective way for private people to easily purchase silica gel for application in such things as keeping tools rust free in damp environments, long term storage, and preservation of dried food for long term storage.

 

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