Silica Gel, Activated - Names and Identifiers
Silica Gel, Activated - Physico-chemical Properties
Molecular Formula | mSiO2·nH2O
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Physical and Chemical Properties | High purity and high activity silica gel. The color is white. When it is used as a carrier and carries a certain assay reagent, it will show a certain characteristic change when it comes into contact with toxic and harmful components in the gas. |
Silica Gel, Activated - Introduction
Activated silica gel is a porous material, also known as activated carbon in chemistry, with the following characteristics:
1. Porosity: Activated silica gel has a highly developed pore structure, which is conducive to the adsorption and storage of gas, liquid or solution.
2. Hydrophilicity: Activated silica gel has strong hydrophilicity, which can absorb water, water vapor in humid air and water in liquid.
3. High surface area: Due to its porous structure, activated silica gel has a great specific surface area, providing a large amount of adsorption surface, making it have a high adsorption capacity.
4. High temperature resistance: Activated Silica gel has good thermal stability and can maintain its adsorption characteristics under high temperature conditions.
The main uses of activated silica gel include:
1. Adsorbent: Activated silica gel is widely used in industrial fields to adsorb organic matter, water vapor, gas and impurities in solution.
2. Dehumidifying agent: Due to its strong moisture absorption ability, Activated Silica gel is often used to maintain the dry state of electronic products, drugs and food.
3. Catalyst: Activated silica gel can also be used as a catalyst to play an important role in chemical reactions.
The methods for preparing Activated Silica Gel include chemical vapor phase method and pyrolysis method:
1. Chemical gas phase method: by decomposing the organic silicon precursor at high temperature, the active Siloxane is generated, and finally the Activated Silica gel is formed.
2. Pyrogenation method: The silicone material is treated at high temperature and oxidized in oxygen or air to form an activated silica gel with a porous structure.
Regarding the safety information of activated silica gel, the following matters need to be paid attention:
1. There may be damage to the skin and eyes of wet activated silicone, please use gloves and eye protection equipment.
2. Activated Silica gel should not be in contact with strong acid, strong alkali and other chemicals.
3. In the operation of activated silica gel, please ensure good ventilation to avoid inhalation of dust.
4. Avoid static electricity when storing and handling activated silica gel to prevent the risk of fire and explosion.
It is best to carefully read the safety data sheet and instructions of the activated silica gel used before use, and follow the corresponding operating instructions and safety precautions.
Last Update:2024-04-09 21:32:34