CG-Si75 (Bis [γ-(triethoxysilyl) propyl] disulfide)

Description Chemical Name:    Bis [γ-(triethoxysilyl) propyl] disulfide
Molecular Formula:    C₁₈H₄₂O₆S₂Si₂
Structural Formula:  

Molecular Weight:    474.82
CAS No. 56706-10-6

Physical Properties 1.Physical Form :   Transparent liquid
2.Color :   Light yellow
3.Specific Gravity at 25°C, g/cm3:    1.020-1.060
4.Refractive Index, ND20:    1.4500-1.4900
5.Total Sulfur, %:    13.3-15.5
6.Average Sulfur Chain Length :    2.03-2.37
7.S2 Content, % :   80-90
8.Flash Point, Closed Cup, °C :    129

Applications CG-Si75 (CAS 56706-10-6) is a silane coupling agent with multiple functional groups successfully used in the rubber industry to improve modulus and tensile strength of rubber, reduce compound viscosity and save process energy consumption. Bis [γ-(triethoxysilyl) propyl] disulfide is especially applicable for polymers with double bond or rubber formulation with hydroxyl fillers. The suitable fillers include silica, silicate, clay, etc. The suitable rubber include natural rubber (NR), butadiene styrene rubber (SBR), isoprene rubber (IR), butadiene rubber (BR), acrylonitrile butadiene rubber (NBR), ethylene propylene diene rubber (EPDM), etc.
Comparing with Si69, the low-active disulfane group in silane coupling agent Si75 provides more reliable scorch safety.

Packaging and Storage Silane coupling agent Si75 shall be packed in 25KG, 200KG drums, IBC and ISO Tank.
It shall be sealed and stored in cool and well-ventilated place, and kept away from fire and water.

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Tags: Rubber Additive Silane Coupling Agent, Sulfur Silane Coupling Agent, Sulfide-functional Silane Coupling Agent, Mixture of Si75 (50%) and Carbon black (50%)