Tetraethyl Orthosilicate TEOS is primarily used in the sol-gel process for the prepartion of silica(Si02). CAS 78-10-4 CE 201-083-8 Grade GR

Safety Information

• Hazard Statements: Flammable liquid with irritant odor. Contact or inhalation may cause irritation to eyes and skin.
• Precautionary Statements: Avoid inhalation, skin, and eye contact. Use in a well-ventilated area and wear appropriate personal protective equipment.

Applications

Tetraethyl Orthosilicate is commonly used in

• Preparation of silicates and silica gels
• Crosslinking agent in coatings and adhesives
• Production of high-temperature glasses and ceramics
• Manufacturing of microelectronic and optoelectronic devices

Summary

Tetraethyl Orthosilicate is an important organosilicon compound extensively utilized in materials science and the electronics industry.

| Item                | Details                          |
|---------------------|----------------------------------|
| Product Name        | Tetraethyl Orthosilicate         |
| Specification       | Analytical grade                 |
| Batch Number        | 2023060901                       |
| Molecular Formula   | (C2H5)4SiO4                      |
| Molecular Weight    | 208.33 g/mol                     |
| Batch Quantity      | 190 kg                           |
| Testing Unit        | Production Department            |
| Sample Type         | Organic                          |
| Report Date         | 2023.06.11                       |
| Testing Standard    | Q/CDKLHX0050-2016A               |

| Test Item              | Standard Requirement            | Test Result        |
|------------------------|---------------------------------|--------------------|
| Content (as SiO2), %   | ≥28.0                           | 29.0               |
| Appearance             | Colorless transparent liquid    | Colorless transparent liquid |
| Relative Density d20/4 | 0.929–0.936                     | 0.933              |
| Free Acid (as HCl), %  | ≤0.04                           | 0.005              |

Conclusion: Meets the requirements of Q/CDKLHX0050-2016A for analytical grade.