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Bis[3-(triethoxysilyl)propyl]tetrasulfide

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Company Name: Henan DaKen Chemical CO.,LTD.
Tel: +86-371-55531817
Email: info@dakenchem.com
Products Intro: Product Name:Bis[3-(triethoxysilyl)propyl]tetrasulfide
CAS:40372-72-3
Purity:99.00% Package:100g,500g,1KG,10KG,100KG
Company Name: Henan Tianfu Chemical Co.,Ltd.
Tel: 0371-55170693
Email: info@tianfuchem.com
Products Intro: CAS:40372-72-3
Purity:99% Package:500G;1KG;5KG;25KG
Company Name: Mainchem Co., Ltd.
Tel: +86-0592-6210733
Email: sales@mainchem.com
Products Intro: Product Name:Bis[3-(triethoxysilyl)propyl]tetrasulfide
CAS:40372-72-3
Company Name: Chemson Industrial (Shanghai) Co., Ltd.
Tel: 86-21-65208861-ext8007
Email: sales1@chemson.com.cn
Products Intro: Product Name:Bis(3-(triethoxysilyl)propyl)tetrasulfide
CAS:40372-72-3
Purity:99.50% Package:25kg
Company Name: Chemwill Asia Co.,Ltd.
Tel: 86-21-51086038
Email: chemwill_asia@126.com;sales@chemwill.com;chemwill@hotmail.com;chemwill@gmail.com
Products Intro: CAS:40372-72-3
Purity:99% Package:5KG;1KG;25KG

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Bis[3-(triethoxysilyl)propyl]tetrasulfide Basic information
Application
Product Name:Bis[3-(triethoxysilyl)propyl]tetrasulfide
Synonyms:16-Dioxa-8,9,10,11-tetrathia-4,15-disilaoctadecane,4,4’,15,15-tretraethoxy-3;9,10,11-tetrathia-4,15-disilaoctadecane,4,4,15,15-tetraethoxy-16-dioxa-8;CouplingagentG-407;Bis(triethoxysilylpropyl)tetrasulfide;4,4,15,15-tetraethoxy-3,16-dioxa-8,9,10,11-tetrathia-4,15-disilaoctadecane;Bis(3-triethoxysilylpropyl) tetrasulfane;3,16-Dioxa-8,9,10,11-tetrathia-4,15-disilaoctadecane, 4,4,15,15-tetraethoxy-;Bis[3-(triethoxysilyl)prop-1-yl]tetrasulphane
CAS:40372-72-3
MF:C18H42O6S4Si2
MW:538.95
EINECS:254-896-5
Product Categories:silane;Industrial/Fine Chemicals;Sulfur;Adhesion Promoters;Coupling Agents;Dispersing Agents;-;Sulfur Silanes;Surface Modifiers
Mol File:40372-72-3.mol
Bis[3-(triethoxysilyl)propyl]tetrasulfide Structure
Bis[3-(triethoxysilyl)propyl]tetrasulfide Chemical Properties
Boiling point 250 °C
density 1.08 g/mL at 20 °C(lit.)
refractive index n20/D 1.49
Fp 91°C
Specific Gravity1.095
Water Solubility Miscible with toluene, primary alcohols, ketones, benzene, chlorinated hydrocarbons, acetonitrile, dimethylformaminde and dimethysulfoxide. Immiscible with water.
BRN 2062235
CAS DataBase Reference40372-72-3(CAS DataBase Reference)
EPA Substance Registry System3,16-Dioxa-8,9,10, 11-tetrathia-4,15-disilaoctadecane, 4,4,15,15-tetraethoxy-(40372-72-3)
Safety Information
Hazard Codes Xi
Safety Statements 23-24/25
WGK Germany 1
TSCA Yes
HS Code 29309090
MSDS Information
ProviderLanguage
SigmaAldrich English
ALFA English
Bis[3-(triethoxysilyl)propyl]tetrasulfide Usage And Synthesis
ApplicationWhen used in rubber compounds, it produces these effects:
Coupling agent for non-black pigments;
Cure equilibrium for reversion resistance;
Curing agent for good heat aging.
Coupling Agent - With as little as 0.5 to 1.0 phr with clay fillers and 1.0 to 4.0 phr for silica pigments, BIS[3-(TRIETHOXYSILYL)PROPYL]TETRASULFIDE couples the non-black pigment and elastomers resulting in increases in modulus and increase in abrasion resistance.
Cure Equilibrium - BIS[3-(TRIETHOXYSILYL)PROPYL]TETRASULFIDE has four sulfur atoms positioned in the center. At cure temperatures, these participate with sulfur in producing polysulfidic crosslinks. The BIS[3-(TRIETHOXYSILYL)PROPYL]TETRASULFIDE replaces crosslinks broken during cure, resulting in reversion resistant, and with proper compounding, reversion free compounds. This is known as equilibrium cure. The dynamic flex characteristics, E.G., heat generation and crack growth, are dramatically improved.
Curing Agent - Removing all sulfur from the compound for NR, SBR, NBR and replacing it with BIS[3-(TRIETHOXYSILYL)PROPYL]TETRASULFIDE and certain thiuram accelerators, produces compounds with excellent heat aging characteristics in addition to the coupling effects. BIS[3-(TRIETHOXYSILYL)PROPYL]TETRASULFIDE is a silane coupling agent that has crosslinking and accelerator activity in rubber compounds.
Area of rubber industry where they would be beneficial
Footwear - Abrasion resistance | Cutting and chunking resistance | Flex life improvement
Rolls - Abrasion resistance | Aging resistance | Processing | Set reduction (better load bearing) | Reduced water swell | Lower hysteresis
Mechanical Molded Goods - Increased modulus | Better heat aging | Compression set reduction | Dynamic property improvement | Reduced swell to polar liquids | Filler substitution (non-black for black)
Hose - Improved abrasion on cover | Better heat aging | Increased modulus | Lower compression set | Improved adhesion to reinforcing elements
Solid Tires - Improved abrasion | Lower hysteresis | Higher modulus | Improved processing | Possibly better adhesion
Tires - Treads for abrasion, hot tear | Carcass for adhesion and/or filler substitution | Breaker (belt) stocks for adhesion
Belts Flat Belts - Increased abrasion | Improved reversion resistance | Reduced cost with clay substitution for black | Improved cord adhesion | Increased flex life and modulus
V Belts - Increased modulus | Improved abrasion | Longer flex life | Improved adhesion to reinforcing elements
Chemical PropertiesYellowish clear liquid
Bis[3-(triethoxysilyl)propyl]tetrasulfide Preparation Products And Raw materials
Raw materialsSodium polysulfide
Tag:Bis[3-(triethoxysilyl)propyl]tetrasulfide(40372-72-3) Related Product Information
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