CG-Si69 (CAS 40372-72-3, EINECS 254-896-5) Bis[3-(triethoxysilyl)propyl]tetrasulfide

Description: The chemical name of our silane coupling agent CG-Si69 is Bis[3-(triethoxysilyl)propyl]tetrasulfide, and its corresponding trademark can be A-1289 and Si-69. Its chemical structural formula is C₁₈H₄₂O₆Si₂S₄
.

Physical Properties: 1. CAS No. 40372-72-3
2. EINECS No. 254-896-5
3. Appearance: yellow liquid
4. Density (ρ20ºC): 1. 08 g/cm³
5. Boiling point: 250ºC
6. Flashing point: 100ºC
7. Refractive index (nD20): 1.49
8. Dissolvability: insoluble in water, but insoluble in organic solvents, such as primary alcohol, acetone, benzene, toluene, chlorinated hydrocarbons, dimethyl formamide, dimethyl sulfoxide, etc.

Applications: As a kind of multifunctional silane coupling agent widely used in rubber and plastics industries, it can greatly improve the mechanical and physical properties of rubber, like tensile strength, tear strength, and wear-resisting property, thus decreasing the permanent deformation degree. Meanwhile, it can also enhance its processing performance through reducing the viscosity of rubber.

The Bis[3-(triethoxysilyl)propyl]tetrasulfide is typically suitable for vulcanized rubber series whose reinforcing agents are white carbon black and silicate. And it can also used in white carbon black, talc powder, clay, mica powder, pottery clay, etc. Its applicable polymers are NR, IR, SBR, BR, NBR, EPDM, and so on.

As a professional manufacturer and supplier of bis[3-(triethoxysilyl)propyl]tetrasulfide in China. Our products have received certification of ISO. Our products have been well received by customers from many countries, such as United States, Canada, Mexico, Brazil, Argentina, Germany, Britain, France, the Netherlands, Russia, Japan, South Korea, India, Vietnam, Malaysia, Taiwan, the Middle East, Australia, and so on. If you are interested, please contact us freely.