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Price	$1
Package	1KG

Product Details

Product Name: Bis[3-(triethoxysilyl)propyl]tetrasulfide	CAS No.: 40372-72-3
EC-No.: 254-896-5	Min. Order: 1G
Purity: 99%	Supply Ability: 100kg
Release date: 2019/07/06

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Bis[3-(triethoxysilyl)propyl]tetrasulfide Basic information

Application

Product Name:	Bis[3-(triethoxysilyl)propyl]tetrasulfide
Synonyms:	TESPT;BIS(TRIETHOXYSILYLPROPYL)TETRASULPHANE;BIS(3-(TRIETHOXYSILYL)PROPYL)TETRASULFIDE;BIS [3-(TRIETHOXYSILYL )PROPYL ] TETRASULPHIDE;3,3'-TETRATHIOBIS(PROPYL-TRIETHOXYSILANE);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
CAS:	40372-72-3
MF:	C18H42O6S4Si2
MW:	538.95
EINECS:	254-896-5
Product Categories:	Industrial/Fine Chemicals;Sulfur;Adhesion Promoters;Coupling Agents;Dispersing Agents;Sulfur Silanes;Surface Modifiers;silane
Mol File:	40372-72-3.mol

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
Water Solubility	Miscible with toluene, primary alcohols, ketones, benzene, chlorinated hydrocarbons, acetonitrile, dimethylformaminde and dimethysulfoxide. Immiscible with water.
CAS DataBase Reference	40372-72-3(CAS DataBase Reference)
EPA Substance Registry System	3,16-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

MSDS Information

Provider	Language
SigmaAldrich	English
ALFA	English

Bis[3-(triethoxysilyl)propyl]tetrasulfide Usage And Synthesis

Application

When 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 Properties

Yellowish clear liquid

Company Profile Introduction

Established in 2014,Career Henan Chemical Co. is a manufacturerspecializing in the sale of fine chemicals. Mainly deals in the sales of: Pharmaceutical intermediates OLED intermediates： Pharmaceutical intermediates; OLED intermediates;

Recommended supplier

Product name	Price		Suppliers	Update time
Bis[3-(triethoxysilyl)propyl]tetrasulfide	$99.00/1kg	VIP1Y	Hebei Zhuanglai Chemical Trading Co Ltd	2024-12-11
Bis[3-(triethoxysilyl)propyl]tetrasulfide	$10.00/1KG	VIP6Y	Hebei Weibang Biotechnology Co., Ltd	2024-12-11
Bis[3-(triethoxysilyl)propyl]tetrasulfide	$0.00/1KG	VIP3Y	Hebei Weibang Biotechnology Co., Ltd	2024-10-30
Bis[3-(triethoxysilyl)propyl]tetrasulfide	$50.00/1KG	VIP2Y	Henan Fengda Chemical Co., Ltd	2023-12-22
Bis[3-(triethoxysilyl)propyl]tetrasulfide	$0.00/25KG	VIP5Y	Hebei Mujin Biotechnology Co.,Ltd	2023-09-07
Bis[3-(triethoxysilyl)propyl]tetrasulfide	$6.92/200kg	VIP3Y	Iota silicone oil (Anhui) Co.,ltd.	2022-07-25
Bis[3-(triethoxysilyl)propyl]tetrasulfide	$0.00/1KG		Honest Joy Holdings Limited	2022-01-14
Bis[3-(triethoxysilyl)propyl]tetrasulfide	$1.00/200Kg/Drum	VIP4Y	Wuhan KEMI-WORKS Chemical Co., Ltd.	2021-09-22
Bis[3-(triethoxysilyl)propyl]tetrasulfide	$15.00/1KG		Zhuozhou Wenxi import and Export Co., Ltd	2021-08-11

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Bis[3-(triethoxysilyl)propyl]tetrasulfide

Product Details

Company Profile Introduction

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career henan chemical co