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Silane couping agent KH-SI 69 Bis(3-triethoxysilylpropyl)tetrasulfide

  • CAS No.: 40372-72-3
  • Weight: 538.95348
  • Formula: C18H42O6S4Si2
  • Place of Orign: shanghai,,China

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  • Product Name.:Silane couping agent KH-SI 69 Bis(3-triethoxysilylpropyl)tetrasulfide
  • CAS No: 40372-72-3
  • Weight: 538.95348
  • Formula: C18H42O6S4Si2
  • Boiling Point: 250 °C
  • Density: 1.08

Details

Product: Silane couping agent KH-SI 69
Chemical Name: Bis(3-triethoxysilylpropyl)tetrasulfide
CAS No.: 40372-72-3
Structure formula: (C2H5O)3Si(CH2)3S4(CH2)3Si(OC2H5)3
Typical Physical Properties:
CAS No.: 40372-72-3
Molecular Weight: 539
Boiling Point<760mmHg>: 250
Flash Point: 100
Color and Appearance: Clear yellow liquid
Density<16/24>: 1.1+ 0.02
Sulfur content(%): 22.7+ 0.8

1- 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.

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CAS No:40372-72-3 triethoxy-[3-(3-triethoxysilylpropyltetrasulfanyl)propyl]silane

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