silane coupling agent Si-69

1.Domestic trade mark corresponding to overseas
1)CAS KH-845-4
2)Si-69(Getmany)
3)Y-6194(USA)


2.Nomenclature
Tetrasuphur triethoxypropylsiiane

3.Molecule structure:
(H5C2O)3Si(CH2)3·S4·(CH2) 3·Si(OC2H5)3


4.MW:539.06

5.Physico-chemical properties
Pale-yellow to brown liquor,could be soluble in alcohol,kctones,benzene,acetonitrile,DMF,DMSO and chloronated hydroncarbons,not soluble in water.

6.Technology guideline
Physical form: a pale yellow transparent liquid with  light odor of ethanol.
Sulfur content: 22%
Density(20):   1.08001.0900 g/cm3
Refractive Index (nD20): 1.4820±0.0005
 Impurity(Ethanol, Silanes): 6.0%

7.Application
The agent is not the activated agent ,coupling agent ,but the crosslinking agent ,soften agent and strengthening agent.It was used as strengthening and sulfurizing agent in rubber industry.It could be used in meridian tyre,large-scale cngine tyre,shocs making,stick roller and wire.etc.

8.Packing
Pacding in barrel with plastic underlayer.10,50,100Kg/barrel