Detailed Product Description

Product Name: Bis[3-(triethoxysilyl)propyl]tetrasulfide; KH-SI 69

CAS No.: 40372-72-3

M.F.: C₁₈H₄₂O₆S₄Si₂

M.W.: 538.94

Boiling point: 250^oC

Refraction (ηD25): 1.4850±0.005     

Density (P25,g/cm3):1.089±0.005

Color and Appearance:  Clear yellow liquid   

Sulfur content (%):  ≥22.0%

Viscosity: 11.2cSt

Solubility: soluble in alcohol, acetone,aether, in soluble in water

Features: Si 69 silane, is a bifunctional polysulfidic organosilane for the rubber industry defined chemically as Bis(3-triethoxysilylpropyl)tetrasulfide. It is used to improve the reinforcing capability of fillers with silanol group on their surface (e.g. silicas, silicates, clay, etc.), and also as an integral part of curing systems to improve crosslinking network properties. It has crosslinking and accelerator activity in rubber compounds as a silane coupling agent.

Useage: activating agent, crosslinking agent, softener, rein forcing agent.

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