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Bis[3-(triethoxysilyl)propyl]tetrasulfide

Bis[3-(triethoxysilyl)propyl]tetrasulfide structure

CAS No.: 40372-72-3

Chemical Name:: Bis[3-(triethoxysilyl)propyl]tetrasulfide

Synonyms: TESPT;A-1289;KHSI69;Z-6940;CG-Si69;KBE-846;CouplingagentG-407;Bis[3-(triethoxysily;Silane coupler KH-858;SilanecouplingagentSI-69

CBNumber:: CB1169012

Molecular Formula:: C18H42O6S4Si2

Molecular Weight:: 538.95

MDL Number:: MFCD00053751

MOL File:: 40372-72-3.mol

MSDS File:: SDS

Last updated:2023-12-22 19:40:13

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Bis[3-(triethoxysilyl)propyl]tetrasulfide Properties

Boiling point	250 °C
Density	1.08 g/mL at 20 °C(lit.)
refractive index	n20/D 1.49
Flash point	91°C
form	Liquid
Specific Gravity	1.095
Water Solubility	Miscible with toluene, primary alcohols, ketones, benzene, chlorinated hydrocarbons, acetonitrile, dimethylformaminde and dimethysulfoxide. Immiscible with water.
Hydrolytic Sensitivity	7: reacts slowly with moisture/water
BRN	2062235
InChIKey	VTHOKNTVYKTUPI-UHFFFAOYSA-N
CAS DataBase Reference	40372-72-3(CAS DataBase Reference)
FDA UNII	J98V193ZRY
EPA Substance Registry System	3,16-Dioxa-8,9,10,11-tetrathia-4,15-disilaoctadecane, 4,4,15,15-tetraethoxy- (40372-72-3)

SAFETY

Risk and Safety Statements

Symbol(GHS)

GHS07

Signal word

Warning

Hazard statements

H315-H319-H335

Precautionary statements

P261-P271-P280

Hazard Codes

Safety Statements

23-24/25

WGK Germany

TSCA

Yes

HS Code

29309090

NFPA 704

	2
2		0

Bis[3-(triethoxysilyl)propyl]tetrasulfide price More Price(21)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Sigma-Aldrich	15200	Bis[3-(triethoxysilyl)propyl] tetrasulfide technical, ≥90% (NMR)	40372-72-3	50ml	$272	2024-03-01	Buy
Alfa Aesar	042410	Bis[3-(triethoxysilyl)propyl]tetrasulfide, S 22.3% (typical)	40372-72-3	5g	$34.65	2024-03-01	Buy
Alfa Aesar	042410	Bis[3-(triethoxysilyl)propyl]tetrasulfide, S 22.3% (typical)	40372-72-3	25g	$99.65	2024-03-01	Buy
Alfa Aesar	042410	Bis[3-(triethoxysilyl)propyl]tetrasulfide, S 22.3% (typical)	40372-72-3	100g	$268.65	2024-03-01	Buy
Alfa Aesar	042410	Bis[3-(triethoxysilyl)propyl]tetrasulfide, S 22.3% (typical)	40372-72-3	500g	$596	2024-03-01	Buy

Product number	Packaging	Price	Buy
15200	50ml	$272	Buy
042410	5g	$34.65	Buy
042410	25g	$99.65	Buy
042410	100g	$268.65	Buy
042410	500g	$596	Buy

Bis[3-(triethoxysilyl)propyl]tetrasulfide Chemical Properties,Uses,Production

Uses

Bis[3-(triethoxysilyl)propyl]tetrasulfide is a silylating coupling agent and modifier, and has been used in the design of a new generation of sustainable self-healing styrene-butadiene compounds.

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

Uses

Bis[3-(triethoxysilyl)propyl]tetrasulfide is used in radial tires, rubber tire treads, carcass, tire walls, solid rubber tires and other rubber products. It acts as a chemical intermediate and as a cross linking agent. Furthermore, it acts as a coupling agent used to chemically modify silica surface. In addition, it serves as a curing agent for good heat aging.

Uses

Bis[3-(triethoxysilyl)propyl] tetrasulfide (TESPTS) is generally used as a crosslinking agent and reinforcing filler in the manufacturing of rubber. TESPT film provides corrosion protection to the metallic substrates. It is also used as a precursor in the synthesis of mesoporous organosilicas.

Bis[3-(triethoxysilyl)propyl]tetrasulfide Preparation Products And Raw materials

Raw materials

Sodium polysulfide

Preparation Products

Bis[3-(triethoxysilyl)propyl]tetrasulfide Suppliers

Global( 293)Suppliers

Supplier	Tel	Email	Country	ProdList	Advantage
Hebei Mojin Biotechnology Co., Ltd	+8613288715578	sales@hbmojin.com	China	12456	58
Henan Fengda Chemical Co., Ltd	+86-371-86557731 +86-13613820652	info@fdachem.com	China	7786	58
Shanghai Daken Advanced Materials Co.,Ltd	+86-371-66670886	info@dakenam.com	China	15928	58
Henan Tianfu Chemical Co.,Ltd.	+86-0371-55170693 +86-19937530512	info@tianfuchem.com	China	21691	55
ATK CHEMICAL COMPANY LIMITED	+undefined-21-51877795	ivan@atkchemical.com	China	32480	60
Chemson Industrial (Shanghai) Co., Ltd.	86-21-65208861- 8007	sales1@chemson.com.cn	CHINA	117	58
career henan chemical co	+86-0371-86658258	sales@coreychem.com	China	29914	58
Hubei Jusheng Technology Co.,Ltd.	18871490254	linda@hubeijusheng.com	CHINA	28180	58
Hebei Guanlang Biotechnology Co., Ltd.	+86-19930503282	alice@crovellbio.com	China	8823	58
Xiamen AmoyChem Co., Ltd	+86-592-6051114 +8618959220845	sales@amoychem.com	China	6387	58

Supplier	Advantage
Hebei Mojin Biotechnology Co., Ltd	58
Henan Fengda Chemical Co., Ltd	58
Shanghai Daken Advanced Materials Co.,Ltd	58
Henan Tianfu Chemical Co.,Ltd.	55
ATK CHEMICAL COMPANY LIMITED	60
Chemson Industrial (Shanghai) Co., Ltd.	58
career henan chemical co	58
Hubei Jusheng Technology Co.,Ltd.	58
Hebei Guanlang Biotechnology Co., Ltd.	58
Xiamen AmoyChem Co., Ltd	58

View Lastest Price from Bis[3-(triethoxysilyl)propyl]tetrasulfide manufacturers

Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
2023-12-23	Bis[3-(triethoxysilyl)propyl]tetrasulfide 40372-72-3	US $50.00-1.00 / KG	1KG	99%	g-kg-tons, free sample is available	Henan Fengda Chemical Co., Ltd
2023-09-07	Bis[3-(triethoxysilyl)propyl]tetrasulfide 40372-72-3	US $0.00 / KG	1KG	99%	50000KG/month	Hebei Mojin Biotechnology Co., Ltd
2023-09-06	Bis[3-(triethoxysilyl)propyl]tetrasulfide 40372-72-3	US $0.00-0.00 / KG	1KG	99%	500000kg	Hebei Guanlang Biotechnology Co., Ltd.

Bis[3-(triethoxysilyl)propyl]tetrasulfide
40372-72-3
US $50.00-1.00 / KG
99%
Henan Fengda Chemical Co., Ltd

Bis[3-(triethoxysilyl)propyl]tetrasulfide
40372-72-3
US $0.00 / KG
99%
Hebei Mojin Biotechnology Co., Ltd

Bis[3-(triethoxysilyl)propyl]tetrasulfide
40372-72-3
US $0.00-0.00 / KG
99%
Hebei Guanlang Biotechnology Co., Ltd.

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BIS(TRIETHOXYSILYLPROPYL)TETRASULPHANE BIS(3-(TRIETHOXYSILYL)PROPYL)TETRASULFIDE BIS [3-(TRIETHOXYSILYL )PROPYL ] TETRASULPHIDE 3,3'-TETRATHIOBIS(PROPYL-TRIETHOXYSILANE) Bis(3-triethoxysilylpropyl)-tetrasulfan 3,16-Dioxa-8,9,10,11-tetrathia-4,15-disilaoctadecane,4,4',15,15-tretraethoxy- Bis[3-(triethoxysilyl)propyl]tetrasulfide, S 22.3% (typical) bis(3-briethoxy silane propyl)-tetrsulfide Si-69 Silane coupling agent 3-triethoxy-silylpropyl-tetrasulfane Silane coupler KH-858 [Pertetrathiobis(trimethylene)]bis(triethoxysilane) Bis(3-triethoxysilylpropyl) pertetrasulfide Bis(triethoxysililpropyl)tetrasulfane Bis[3-(Triethoxysilyl)Propyl]Tetrasulfide, S (Typical) Bis[3-(triethoxysily 3,16-Dioxa-4,15-disila-4,4,15,15-tetraethoxy-8,9,10,11-tetrathiaoctadecane Bis[3-(triethoxysilyl)propyl]tetrasulfide(Si69) Bis-[3-(triethoxysilylpropyl)]-tetrasulfide (GW-04、GW-96-2、GY-69) BIS[3-(TRIETHOXYSILYL)PROPYL]TETRASULFIDE, tech-95 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 Bis(3-(triethoxysilyl)propyl)tetrasulfide, S 22% (typical) Bis[3-(triethoxysilyl)propyl] tetrasulfide technical, >=90% (NMR) 3-phenyl-4-(phenylmethyl)-1,4-dihydropyrazol-5-one KHSI69 Bis[3-(triethoxysilyl)propyl]tetrasulfide (CG-Si69) Bis[3-(triethoxysilyl)prop-1-yl]tetrasulfane CG-Si69 Bis[3-(triethoxysilyl)propyl]tetrasulfise triethoxy-[3-(3-triethoxysilylpropyltetrasulfanyl)propyl]silane TESPT A-1289 Bis - [3 - (triethoxysilicon) propyl] - tetrasulfide Rubber coupling agent SI-69 SilanecouplingagentSI-69 KBE-846 Z-6940 40372-72-3 C18H42O6S4Si2 CH3CH2O3SiCH2CH2CH2SS2 C18H42Si2S4O6 C12H30O6S4Si Organometallic Reagents Organosilicon Trialkoxysilanes silane Adhesion Promoters Coupling Agents Dispersing Agents Sulfur Silanes Surface Modifiers