60764-86-5

Basic information

• Product Name: triethoxy-[3-(3-triethoxysilylpropylsulfanyl)propyl]silane
• Synonyms: triethoxy-[3-(3-triethoxysilylpropylsulfanyl)propyl]silane;Bis(3-triethoxysilylpropyl) sulfide;Bis[3-(triethoxysilyl)propyl] sulfide;Brn 2287271;Silane, thiodipropylenebis(triethoxy-;Sulfide, bis(3-triethoxysilylpropyl)
• CAS NO: 60764-86-5
• Molecular Formula: C₁₈H₄₂O₆SSi₂
• Molecular Weight: 442.76
• Mol File: 60764-86-5.mol

Chemical Properties

• Boiling Point: 420.9°C at 760 mmHg
• Flash Point: 208.3°C
• Appearance: /
• Density: 0.985g/cm³
• Vapor Pressure: 6.65E-07mmHg at 25°C
• Refractive Index: 1.452
• CAS DataBase Reference: triethoxy-[3-(3-triethoxysilylpropylsulfanyl)propyl]silane(CAS DataBase Reference)
• NIST Chemistry Reference: triethoxy-[3-(3-triethoxysilylpropylsulfanyl)propyl]silane(60764-86-5)
• EPA Substance Registry System: triethoxy-[3-(3-triethoxysilylpropylsulfanyl)propyl]silane(60764-86-5)

Safety Data

• Hazardous Substances Data: 60764-86-5(Hazardous Substances Data)

Usage

Uses

Used in Plastics Industry:
Triethoxy-[3-(3-triethoxysilylpropylsulfanyl)propyl]silane is used as a coupling agent for improving the adhesion between plastic materials and other substrates, such as glass or metal. This enhances the overall durability and performance of plastic products.
Used in Adhesives Industry:
In the adhesives industry, triethoxy-[3-(3-triethoxysilylpropylsulfanyl)propyl]silane is utilized as a coupling agent to enhance the bonding strength between different materials, including organic and inorganic substrates. This results in improved adhesive properties and increased resistance to environmental factors.
Used in Coatings Industry:
Triethoxy-[3-(3-triethoxysilylpropylsulfanyl)propyl]silane is employed as a coupling agent in the coatings industry to improve the adhesion of coatings to various surfaces, leading to increased durability and resistance to wear and tear. This ensures a longer-lasting and more effective protective layer for the coated materials.

InChI:InChI=1/C18H42O6SSi2/c1-7-19-26(20-8-2,21-9-3)17-13-15-25-16-14-18-27(22-10-4,23-11-5)24-12-6/h7-18H2,1-6H3

Upstream product

• 2550-04-1 allyltriethoxysilane 
• 5089-70-3 (3-chloropropyl)triethoxysilane 
• 135795-91-4 (3-chloropropyl)-diethoxy-chlorosilane 
• 87765-00-2 (3-chloropropyl)-ethoxy-dichlorosilane 
• 64-17-5 ethanol 
• 2550-06-3 3-chloropropyltrichlorosilane 
• 40372-72-3 bis(3-triethoxysilylpropyl) tetrasulfide 
• 111-64-8 n-octanoic acid chloride 
• 14814-09-6 3-Mercaptopropyltriethoxysilane 
• 56706-10-6 4,4,13,13-tetraethoxy-3,14-dioxa-8,9-dithia-4,13-disilahexadecane 

Relevant articles and documents

Preparation of sulfide chain-bearing organosilicon compounds

By reacting a halogenoalkyl group-bearing organosilicon compound and optionally sulfur with an aqueous solution or water dispersion of an ammonium or alkali metal polysulfide or a hydrate thereof in the presence of a phase transfer catalyst, a sulfide chain-bearing organosilicon compound having the average compositional formula (2): [in-line-formulae](R1O)(3-p)(R2)pSi—R3—S—R3—Si(OR1)(3-p)(R2)p ??(2) [/in-line-formulae] wherein m has an average value of 2≦m≦6 is obtained in high yields and at a low cost with minimized formation of a monosulfide-bearing organosilicon compound.

Preparation of sulfide chain-bearing organosilicon compounds

By reacting a mixture of a halogenoalkyl group-bearing organosilicon compound and sulfur with an aqueous solution or water dispersion of an ammonium or alkali metal sulfide or a hydrate thereof in the presence of a phase transfer catalyst, a sulfide chain-bearing organosilicon compound having the average compositional formula (2): [in-line-formulae](R1O)(3-p)(R2)pSi—R3—Sm—R3—Si(OR1)(3-p)(R2)p??(2) [/in-line-formulae] wherein m has an average value of 2≦m≦6 is obtained in high yields and at a low cost with minimized formation of a monosulfide-bearing organosilicon compound.

Process for preparing organosilanes

Preparation of organosilane compound (I) comprises reaction of (halo-organo) alkoxysilane compound (II) with sulfurizing agent (alkali hydrogensulfide, metal sulfide and/or metal polysulfide) and optionally in addition with sulfur or hydrogen sulfide in alcohol. Preparation of organosilane compound (I) of formula (Si (R) 2(R1O)(R2)-) nX m comprises reaction of (halo-organo)alkoxysilane compound (II) of formula (Si (R) 2(R1O)(R2)-Hal) with sulfurizing agent (alkali hydrogensulfide (3 wt.%), metal sulfide (Me 2S) and/or metal polysulfide (Me 2S g) (10 wt.%)) and optionally in addition with sulfur or hydrogen sulfide in alcohol. R : 1-8C-alkyl, 1-8C-alkenyl, 1-8C-aryl, 1-8C-aralkyl or OR1; R 1>1-24C-alkyl or alkenyl, aryl, aralkyl, H, alkylether O-(CR 3> 2)-O-alk, O-(CR 3> 2) y-O-alk or alkylpolyether O-(CR 3> 2O) y-alk or O- (CR 3> 2CR 3> 2-O) y-alk; y : 2-20; R 3>H or alkyl; alk : optionally saturated, linear, aliphatic and/or aromatic 1-30C-hydrocarbon; R 2>alk optionally substituted with halo, H, NH 2 or NHR 1>; either X : S; or X : SH; Hal : Cl, Br, F or I; Me : alkali metal, NH 4 or (alkaline earth metal) 1/2; and g : 1, 5-8 or 0. Provided that when n is 2 and m with an average sulfur chain length of 1.5-4.5, then X is S and when n is 1 and m is 1, then X is SH.

Process for preparing mercaptoorganyl alkoxy silanes

Preparation of (mercaptoorganyl)alkoxysilanes (I) comprises reacting alkali metal sulfide with a mixture of (haloorganyl)alkoxysilane (II) and (haloorganyl)halosilane (III) in an alcohol with exclusion of air and at elevated pressure.

Process for the preparation of (mercaptoorganyl)-alkoxysilanen

Production of mercaptoorganyl alkoxysilanes comprises reacting an alkali metal hydrogen sulfide with a mixture of haloorganyl alkoxysilane and haloorganyl halosilane in an alcohol under pressure in a sealed vessel in the absence of oxygen.

Process for the manufacture of blocked mercaptosilanes

A process for the manufacture of a blocked mercaptosilane comprising: reacting at least one polysulfane-containing organosilicon compound of the general formula: (R13SiG)2Sn (a) in which each R1is independently methoxy, ethoxy or alkyl of from 1 to about 6 carbon atoms, provided, that at least one R1group is methoxy or ethoxy, G is an alkylene group of from 1 to about 12 carbon atoms and n is from 2 to about 8, with at least one alkali metal, alkaline earth metal or a basic derivative of an alkali metal or alkaline earth metal to provide the corresponding metal salt of the polysulfane-containing organosilicon compound and; (b) reacting the metal salt of the polysulfane-containing organosilicon compound with an acyl halide or carbonyl dihalide to provide a blocked mercaptosilane.

Method of making mercaptoalkylalkoxysilanes

In a first embodiment of a process for making mercaptoalkylalkoxysilanes, a pH adjusting agent and a sulfide containing compound are mixed in an aqueous phase to provide a pH of 4-9, a phase transfer catalyst is added to the aqueous phase, a haloalkylalkoxysilane is then added to the aqueous phase to form a reaction mixture containing mercaptoalkylalkoxysilanes and water soluble byproducts, and the desired mercaptoalklyalkoxysilanes are separated from the water soluble byproducts. In an alternate embodiment, the haloalkylalkoxysilane, the phase transfer catalyst, and an anhydrous pH adjusting agent such as sulfur dioxide, carbon dioxide, hydrogen sulfide, phosphoric acid, boric acid, and hydrochloric acid, are mixed, then an aqueous solution of a sulfide containing compound is added to form a reaction mixture containing mercaptoalkylalkoxysilanes and water soluble byproducts, and desired mercaptoalklyalkoxysilanes are separated from water soluble byproducts.