CG-502 (CAS No. 78-10-4)

Chemical Name: Tetraethoxysilane
Molecular Formula: C8H20O4Si
Structural Formula :
Molecular Weight: 208.33
CAS No. 78-10-4 (TEOS Si28)

Physical Properties of Tetraethoxysilane:

Physical Form :Transparent liquid
Color: Clear, colorless
Specific Gravity at 25/25°C: 0.93
Boiling Point, °C: 166-169
Refractive Index, nD 25°C: 1.382-1.384
Flash Point, Pensky-Martens Closed Cup (1), °C :45


Tetraethoxysilane (CAS NO. 78-10-4) named TEOS Si28 abroad is mainly used in the manufacture of chemical-resistant and heat-resistant coatings, organosilicon solvents and adhesives for precision casting. When completely hydrolyzed, it will generate tiny silicon oxide powder which can be used in making fluorescent powder. When applied to natural stones or other construction materials, this product forms a silica-gel like binder (SiO2) which increases the substrate strength. Tetraethoxysilane can be used in the polymerization of silicone resins for paints and other surface modification applications. It is also the intermediate for sol-gel process. Further more, this product can improve the performance of other resins. It is the material used for making silicon macromolecular compounds.

Packaging and Storage:

Tetraethoxysilane can be packed in 200KG drum, IBC tank or ISO tank.
The container is sealed and stored in cool and well ventilated place away from fire and water.


The information provided herein was believed by Jiangxi Chenguang New Materials Co., Ltd. to be accurate at the time of preparation or prepared from sources believed to be reliable, but it is the responsibility of the user to investigate and understand other pertinent sources of information, to comply with all laws and procedures applicable to the safe handling and use of tetraethoxysilane, and to determine the suitability of the product for user's intended application or use. All products supplied by Chenguang are subject to Chenguang's standard terms and conditions of sale. CHENGUANG MAKES NO WARRANTY, EXPRESS OR IMPLIED, CONCERNING THE PRODUCT OR THE MERCHANTABILITY OR FITNESS THEREOF FOR ANY PURPOSE OR CONCERNING THE ACCURACY OF ANY INFORMATION PROVIDED BY CHENGUANG, except that the product shall conform to Chenguang’s specifications. Nothing contained herein constitutes an offer for the sale of any product.

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