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

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

Brand Name:	Chemfine
MOQ:	1000 kilograms
Price:	US $3.0 - 4.0 / Kilogram

Detail Information

Product Description

Detail Information

Place of Origin:

China

CAS No.:

40372-72-3

Other Names:

Bis(triethoxysilylpropyl)tetrasulfide

MF:

C18H42O6S4Si2

EINECS No.:

254-896-5

Type:

Syntheses Material Intermediates

Purity:

98%

Application:

Syntheses Material Intermediates

Appearance:

Light Yellow Liquid

Highlight:

Bis[3-(triethoxysilyl)propyl]tetrasulfide organic solvent

CAS 40372-72-3 chemical reagent

tetrasulfide silane coupling agent

Product Description

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

Bis[3-(triethoxysilyl)propyl]tetrasulfide (commonly known as TESPT) is a multifunctional silane coupling agent that enhances bonding between inorganic fillers and organic matrices. It is widely used to improve mechanical properties, dispersion and durability in rubber, plastics and composite materials.

Applications

Rubber Compounding: Improves filler–rubber adhesion, reduces hysteresis and enhances tensile strength in tires and industrial rubber.
Fillers Modification: Enhances dispersion of silica, carbon black and mineral fillers in elastomers and thermoplastics.
Adhesives & Sealants: Increases bonding strength to metal, glass and mineral substrates.
Composites: Improves interfacial adhesion and mechanical performance in fiber-reinforced plastics.

Properties

Appearance: Colorless to pale yellow liquid
Molecular Weight: 476.6 g/mol
Density (25 °C): 1.07 g/cm³
Refractive Index (n25/D): 1.468

Specifications

Parameter	Specification
Assay (by GC)	≥ 95.0 %
Appearance	Colorless to pale yellow liquid
Density (25 °C)	1.07 g/cm³
Refractive Index (n25/D)	1.468
Sulfur Content	31–34 %
Moisture	≤ 0.5 %
Hydrolyzable Alkoxy Groups	≥ 2.8 mmol/g

Package and Storage

Packaging: 200 kg steel drums (lined)
Storage: Store in a cool, dry place below 25 °C, keep container tightly closed.

Why Choose Us?

High Purity: Rigorous GC analysis ensures ≥95 % assay.
Consistent Quality: Batch-to-batch control for reliable performance.
Technical Support: Expert guidance for rubber and composite formulations.
Competitive Pricing: Cost-effective sourcing and large-scale production.

FAQs

1. What is TESPT used for?: It acts as a coupling agent improving adhesion between inorganic fillers and rubber matrices, enhancing mechanical properties in tires and industrial products.
2. How is it incorporated into rubber compounding?: Typically added at 2–8 phr (parts per hundred rubber) during mixing to optimize filler dispersion and bonding.
3. What is the shelf life?: 12 months when stored properly in original sealed drums.
4. Can you provide TDS and MSDS?: Yes, TDS, MSDS and technical reports are available upon request.

Tags:

cas number 79-09-4

2-Nitropropane 98%

cas 79-09-4

Products Details

Home > Products >

Organic Chemistry Solvents

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

All Category

Organic Chemistry Solvents

Coating Additives

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UV Photoinitiator

PPG Polypropylene Glycol

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Polyether Amine

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Miscellaneous Chemical

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

Brand Name:	Chemfine
MOQ:	1000 kilograms
Price:	US $3.0 - 4.0 / Kilogram

Detail Information

Product Description

Detail Information

Place of Origin:

China

Brand Name:

Chemfine

CAS No.:

40372-72-3

Other Names:

Bis(triethoxysilylpropyl)tetrasulfide

MF:

C18H42O6S4Si2

EINECS No.:

254-896-5

Type:

Syntheses Material Intermediates

Purity:

98%

Application:

Syntheses Material Intermediates

Appearance:

Light Yellow Liquid

Minimum Order Quantity:

1000 kilograms

Price:

US $3.0 - 4.0 / Kilogram

Highlight:

Bis[3-(triethoxysilyl)propyl]tetrasulfide organic solvent

CAS 40372-72-3 chemical reagent

tetrasulfide silane coupling agent

Product Description

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

Applications

Rubber Compounding: Improves filler–rubber adhesion, reduces hysteresis and enhances tensile strength in tires and industrial rubber.
Fillers Modification: Enhances dispersion of silica, carbon black and mineral fillers in elastomers and thermoplastics.
Adhesives & Sealants: Increases bonding strength to metal, glass and mineral substrates.
Composites: Improves interfacial adhesion and mechanical performance in fiber-reinforced plastics.

Properties

Appearance: Colorless to pale yellow liquid
Molecular Weight: 476.6 g/mol
Density (25 °C): 1.07 g/cm³
Refractive Index (n25/D): 1.468

Specifications

Parameter	Specification
Assay (by GC)	≥ 95.0 %
Appearance	Colorless to pale yellow liquid
Density (25 °C)	1.07 g/cm³
Refractive Index (n25/D)	1.468
Sulfur Content	31–34 %
Moisture	≤ 0.5 %
Hydrolyzable Alkoxy Groups	≥ 2.8 mmol/g

Package and Storage

Packaging: 200 kg steel drums (lined)
Storage: Store in a cool, dry place below 25 °C, keep container tightly closed.

Why Choose Us?

High Purity: Rigorous GC analysis ensures ≥95 % assay.
Consistent Quality: Batch-to-batch control for reliable performance.
Technical Support: Expert guidance for rubber and composite formulations.
Competitive Pricing: Cost-effective sourcing and large-scale production.

FAQs

1. What is TESPT used for?: It acts as a coupling agent improving adhesion between inorganic fillers and rubber matrices, enhancing mechanical properties in tires and industrial products.
2. How is it incorporated into rubber compounding?: Typically added at 2–8 phr (parts per hundred rubber) during mixing to optimize filler dispersion and bonding.
3. What is the shelf life?: 12 months when stored properly in original sealed drums.
4. Can you provide TDS and MSDS?: Yes, TDS, MSDS and technical reports are available upon request.

Tags: