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- Chemical Name: Silica gel
- CAS No.: 112926-00-8
- Molecular Fomula O2Si
- Molecular weight：60.0800018310547
- Appearance:blue powder
- Sample：Available
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Description of amorphous
- Silica gel is a granular, vitreous, porous form of silicon dioxide made synthetically from sodium silicate. Silica gel contains a nano-porous silica micro-structure, suspended inside of a liquid. Most applications of silica gel require it to be dried, in which case it is called silica xerogel. For practical purposes, silica gel is often interchangeable with silica xerogel. Silica xerogel is tough and hard; it is more solid than common household gels like gelatin or agar. It is a naturally occurring mineral that is purified and processed into either granular or beaded form. As a desiccant, it has an average pore size of 2.4 nanometers and has a strong affinity for water molecules.
Silica gel is most commonly encountered in everyday life as beads in a small (typically 2 x 3 cm) paper packet. In this form, it is used as a desiccant to control local humidity to avoid spoilage or degradation of some goods. Because silica gel can have added chemical indicators (see below) and absorbs moisture very well, silica gel packets usually bear warnings for the user not to eat the contents.
Basic Info of amorphous
Basic Info
Numbering system
Basic Info
| Chemical Name | silica gel |
| Synonyms | Dry Silica Gel;Degussa Aerosil .(R). Silica;silica Aerosil® 200;Drying pearls Orange (heavy metal free);Silica gel for column chromatography;Expand |
| CAS No. | 112926-00-8 |
| Molecular Formula | |
| Molecular Weight | 0.00000 |
| PSA | 0.00000 |
| LogP | 0.00000 |
Numbering system
| EINECS number | 231-545-4 |
| RTECS number | VV7315000 |
What is Silica gel?
- With the progress of science and technology and the development of society, chemical products have invariably permeated our daily lives, in medicine, food, cosmetics, electronics, industry, and other areas, becoming an essential part of our lives. One such product is Silica gel which has developed particularly rapidly in recent years. Do you know about Silica gel?
- The official answer：Gross glassy translucent particles. Insoluble in water and inorganic acid, but soluble in hydrofluoric acid and concentrated caustic soda solution. Silicone gel is a class of low cross-linked density silicone rubber without filler. Unlike ordinary silicone rubber elastomers, silicone gels have a transparent or translucent gel-like appearance, very low mechanical strength, and their hardness is difficult to measure. In addition to the advantages of general silicone materials such as high and low-temperature resistance, safety and non-toxicity, good biocompatibility, and good electrical insulation performance, silicone gel also has the properties of vibration absorption, adhesion, sealing, and other gel substances.
What’s the application of Silica gel?
- Due to the advantages of silicone gel such as good cushioning performance, colorless and transparent, easy performance adjustment, convenient processing and molding, good fluidity, and easy filling of fine structure, it has been widely used in the fields of the medical prosthesis, medical dressing, and electronic and electrical potting. The application of silicone gel in the field of daily necessities has also developed rapidly, mainly by using the non-toxic and non-irritating and cushioning, and vibration-absorbing properties of silicone gel. Silicone gel has been used in the market as cushioning cushions for shoe soles, cushioning for seat cushions, lingerie padding, and other products.
Conclusion
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