Tetraethyl orthosilicate CAS 78-10-4/TEOS
|
Product name |
Tetraethyl Orthosilicate |
|
CAS |
78-10-4 |
|
Purity |
99% |
|
Melting point |
-77 °C |
|
Boiling point |
168 °C(lit.) |
|
Package |
1 kg/bottle or 25 kg/drum |
1 kg/bottle or 25 kg/drum or based on customer's requirements.
Tetraethyl orthosilicate (TEOS) CAS 78-10-4 is primarily used as a precursor for the production of silica and silica-based materials.
1. TEOS CAS 78-10-4 is widely used in the sol-gel process to produce silica gels, coatings and films. This process can produce materials with specific properties such as porosity and surface area.
2. Tetraethyl orthosilicate used to synthesize silica nanoparticles and other silica-based materials, which can be used in various fields such as electronics, optics and catalysis.
3. TEOS is used in formulating protective coatings, including glass and ceramic coatings, because of its ability to form a durable and transparent silicon dioxide layer.
4. In the semiconductor industry, TEOS is used to deposit thin films of silicon dioxide, which are essential for insulating layers in integrated circuits.
5. TEOS can be used to develop biocompatible materials and drug delivery systems by utilizing its silica properties.
6.Tetraethyl orthosilicate is also used to produce advanced building materials such as high-performance concrete and sealants.
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Tetraethyl orthosilicate (TEOS) is considered to have low toxicity, but may still pose some health risks if not handled properly. Here are some key points about its toxicity:
1. Tetraethyl orthosilicate TEOS is irritating to the respiratory system, skin and eyes. Prolonged or repeated exposure may cause more serious consequences.
2. Ingestion of TEOS may be harmful and may cause gastrointestinal irritation.
3. Tetraethyl orthosilicate will hydrolyze in a humid environment to produce silica and ethanol. Although silica is generally considered non-toxic, the ethanol produced can be hazardous.
4. When working with TEOS, always use appropriate personal protective equipment (PPE), such as gloves and goggles, and work in a well-ventilated area to minimize exposure.
5. Always refer to the Material Safety Data Sheet (MSDS) for TEOS for specific safety and handling guidelines.
Tetraethyl orthosilicate (TEOS) should be stored properly to ensure its stability and safety. Here are some guidelines for storing TEOS:
1. Store Tetraethyl orthosilicate TEOS in airtight containers made of compatible materials (such as glass or certain plastics) to prevent contamination and evaporation.
2. Please store TEOS in a cool and dry place away from direct sunlight and heat sources. Ideally, it should be stored at room temperature.
3. Since Tetraethyl orthosilicate is sensitive to moisture and may hydrolyze to form silica and ethanol, it must be stored in a low humidity environment. It is recommended to use a desiccant in the storage area to absorb moisture.
4. Make sure the storage area is well ventilated to prevent vapor buildup which could cause irritation.
5. Clearly label containers with chemical name, hazard information, and date received to ensure proper identification and handling.
6. Store TEOS away from incompatible materials such as strong acids, strong bases, and oxidizing agents.
7. Ensure storage areas are secure and restrict access to authorized personnel only.
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