CAS 40372-72-3 Bis[3-(triethoxysilyl)propyl] tetrasulfide

NAVIGATION

Bis[3-(triethoxysilyl)propyl] tetrasulfide

PRICE INQUIRY

Catalog Number

ACM40372723

CAS Number

40372-72-3

Product Name

Bis[3-(triethoxysilyl)propyl] tetrasulfide

Structure

Category

Salt

Description

DryPowder; Liquid; OtherSolid; PelletsLargeCrystals, Liquid

IUPAC Name

triethoxy-[3-(3-triethoxysilylpropyltetrasulfanyl)propyl]silane

Molecular Weight

539g/mol

Molecular Formula

C18H42O6S4Si2

Canonical SMILES

CCO[Si](CCCSSSSCCC[Si](OCC)(OCC)OCC)(OCC)OCC

InChI

InChI=1S/C18H42O6S4Si2/c1-7-19-29(20-8-2,21-9-3)17-13-15-25-27-28-26-16-14-18-30(22-10-4,23-11-5)24-12-6/h7-18H2,1-6H3

InChI Key

VTHOKNTVYKTUPI-UHFFFAOYSA-N

Application

Bis[3-(triethoxysilyl)propyl] tetrasulfide serves as a versatile and efficient agent in the rubber industry, primarily functioning as a crosslinking and reinforcing filler. This yellowish clear liquid plays a crucial role in enhancing the performance of rubber compounds by acting as a coupling agent for non-black pigments, a curing agent, and in achieving cure equilibrium for improved reversion resistance. It effectively links non-black pigments and elastomers, thereby increasing modulus and abrasion resistance. The four sulfur atoms in its structure facilitate the formation of polysulfidic crosslinks, improving the compound's resistance to reversion and enhancing dynamic flex characteristics, such as heat generation and crack growth. By eliminating sulfur from compounds for NR, SBR, NBR, and replacing it with this product in conjunction with specific thiuram accelerators, it provides excellent heat aging characteristics alongside its coupling benefits. Such qualities make it valuable in various applications, including footwear for abrasion resistance and improved flex life; rolls for aging resistance and processing; mechanical molded goods for increased modulus and dynamic property improvements; hoses for better adhesion and lower compression set; solid tires for superior abrasion resistance; and tires and belts for enhanced adhesion, modulus, and cost efficiency through filler substitution.

Complexity

321

Covalently-Bonded Unit Count

EC Number

254-896-5

Exact Mass

538.140277g/mol

Formal Charge

Heavy Atom Count

Monoisotopic Mass

538.140277g/mol

Rotatable Bond Count