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Bis[3-(triethoxysilyl)propyl] tetrasulfide

Bis[3-(triethoxysilyl)propyl] tetrasulfide structure

CAS No:
40372-72-3
Formula:
C18H42O6S4Si2
Chemical Name:
Bis[3-(triethoxysilyl)propyl] tetrasulfide
Synonyms:
3,16-Dioxa-8,9,10,11-tetrathia-4,15-disilaoctadecane,4,4,15,15-tetraethoxy-;4,4,15,15-Tetraethoxy-3,16-dioxa-8,9,10,11-tetrathia-4,15-disilaoctadecane;Si 69;Bis[3-(triethoxysilyl)propyl] tetrasulfide;Si 29;B 2494;3,3′-Bis(triethoxysilylpropyl) tetrasulfide;Bis(3-triethoxysilylpropyl)tetrasulfane;Unisilan 41;Silquest A 1289;KH 846;Bis[γ-(triethoxysilyl)propyl] tetrasulfide;MB 69;A 1289;Silane 69;EF 60;EF 60 (coupling agent);Degussa Si 69;SCA 98;SIB 1825.0;TM 69;Cabrus 4;KBE 849;KBE 846;Z 6940;TESPT;WD 40;WD 40 (coupling agent);KH 845-4;KBE 845;DB 619;Xiameter Z 6940;KH 845-4-2;Bis[triethoxysilylpropyl] tetrasulfide;KH 858;KBM 846;KBE 864;Luvomaxx TESPT;Couplink 89;Bis(triethoxysilylpropyl)tetrasulfane;SG-Si 998;HP 1898B;BTES;Bis(3-(ethoxysilyl)propyl)tetrasulfide;OFS 6940;Xiameter OFS 6940;Bis(3-triethoxisilylpropyl)tetrasulfide;B 803049;BTSPS;KH 69;KH-Si 69;Silanogran SI 69;OFS 6945;154836-48-3;189257-97-4;224045-74-3;727395-70-2;862469-02-1;908238-15-3;1351508-69-4
Categories:
Chemical Reagents > Silane Reagent

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Description

Yellowish clear liquid

DryPowder; Liquid; OtherSolid; PelletsLargeCrystals, Liquid

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

Molecular Weight：

538.95

Exact Mass：

538.95

EC Number：

254-896-5

UNII：

J98V193ZRY

DSSTox ID：

DTXSID3029362

HScode：

2931900090

Characteristics

PSA：

157

XLogP3：

8.04

Appearance：

DryPowder; Liquid; OtherSolid; PelletsLargeCrystals, Liquid

Density：

1.10 g/cm³

Boiling Point：

250 °C

Flash Point：

91°C

Refractive Index：

1.504

Water Solubility：

Miscible with toluene, primary alcohols, ketones, benzene, chlorinated hydrocarbons, acetonitrile, dimethylformaminde and dimethysulfoxide. Immiscible with water.

Safety Information

wgk germany：

safety instructions：

23-24/25

Marks：

Precautionary statement(s)：

P261, P264, P271, P273, P280, P302+P352, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P403+P233, P405, P501

Hazard Statements：

H315

GHS Classification：

Not Classified

Bis[3-(triethoxysilyl)propyl] tetrasulfide Use and Manufacturing

Uses

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

Adhesives and sealant chemicals

Plastic and rubber products not covered elsewhere

Production

1,000,000 - 10,000,000 lb

Manufacturing Info：

All other chemical product and preparation manufacturing|3,16-Dioxa-8,9,10,11-tetrathia-4,15-disilaoctadecane, 4,4,15,15-tetraethoxy-: ACTIVE

Computed Properties

Molecular Weight:539.0
Hydrogen Bond Acceptor Count:10
Rotatable Bond Count:23
Exact Mass:538.14027682
Monoisotopic Mass:538.14027682
Topological Polar Surface Area:157
Heavy Atom Count:30
Complexity:321
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes

Recommended Suppliers of Bis[3-(triethoxysilyl)propyl] tetrasulfide

HANGZHOU LEAP CHEM CO., LTD. Contact Supplier

CN
5 YRS

Business licensed

Trader Supplier of Intermediates,Building blocks,API,Silicones,Peptides,Lab chemicals,Biochemicals,Pharmaceuticals,Screening Compounds,Food Additives

Bis[3-(triethoxysilyl)propyl]tetrasulfide

CAS No.: 40372-72-3

Content: 99.00%

Inquiry
Henan Wising Chem Co., Ltd Contact Supplier

CN
5 YRS

Business licensed

Trader Supplier of Plastic chemical,Pharmaceutical Intermediate,Rubber chemical,Specialty Chemicals

Silane Coupling Agent Si69 98% Yellow or light yellow transparent liquid Si69

CAS No.: 40372-72-3

Grade: Industrial Grade

Content: 98%

Inquiry
Shandong Airuike Chemical Co., Ltd. Contact Supplier

CN
3 YRS

Business licensed

Trader Supplier of api,Intermediates,Organic Chemistry,Inorganic Chemistry,Daily Chemicals,Cosmetic Raw Materals,CATALYST AND AUXILIARY,FLAVORS AND FRAGRANCES,Chemical Pesticides,ADDITIVE

Bis[3-(triethoxysilyl)propyl]tetrasulfide

Unit Price: $1 /KG EXW

CAS No.: 40372-72-3

Grade: pharmaceutical grade

Content: 99%

Inquiry
Henan Lihao Chem Plant Limited Contact Supplier

CN
5 YRS

Business licensed

Trader Supplier of PVC resin,pvc paste resin,melamine

Bis[3-(triethoxysilyl)propyl]tetrasulfide 99% white powder kanbei

CAS No.: 40372-72-3

Grade: Industrial Grade

Content: 99%

Inquiry

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Guide of Bis[3-(triethoxysilyl)propyl] tetrasulfide

Description
Basic Attributes
Characteristics
Safety Information
Use and Manufacturing
Computed Properties
Recommended Suppliers
Latest News
Learn More Other Chemicals

Bis[3-(triethoxysilyl)propyl] tetrasulfide

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