34708-08-2

Basic information

• Product Name: 3-Thiocyanatopropyltriethoxysilane
• Synonyms: triethoxy(3-thiocyanatopropyl)silane;thiocyanicacid,3-(triethoxysilyl)propylester;3-THIOCYANATOPROPYLTRIETHOXYSILANE;3-THIOCYANOTOPROPYLTRIETHOXYSILANE;3-Thiocyanatopropyltriethoxysilan;-THIOCYANATOPROPYLTRIETHOXYSILANE;Si-264;Triethoxy(3-thiocyanatopropyl)
• CAS NO: 34708-08-2
• Molecular Formula: C₁₀H₂₁NO₃SSi
• Molecular Weight: 263.43
• EINECS: 252-161-3
• Product Categories: Adhesion Promoters;Coupling Agents;Surface Modifiers;Thiocyanato Silanes
• Mol File: 34708-08-2.mol
• Article Data: 3

Chemical Properties

• Melting Point: <0°C
• Boiling Point: 95 °C
• Flash Point: 112°C
• Appearance: Straw to yellowish liquid with mild odor
• Density: 1.03
• Vapor Pressure: 0.00119mmHg at 25°C
• Refractive Index: 1.446
• Water Solubility: 140-1000000mg/L at 20℃
• CAS DataBase Reference: 3-Thiocyanatopropyltriethoxysilane(CAS DataBase Reference)
• NIST Chemistry Reference: 3-Thiocyanatopropyltriethoxysilane(34708-08-2)
• EPA Substance Registry System: 3-Thiocyanatopropyltriethoxysilane(34708-08-2)

Safety Data

• Hazard Codes: Xn
• Statements: 20/21/22-36/37/38-52/53-22
• Safety Statements: 26-36/37/39-61
• TSCA: No
• Hazardous Substances Data: 34708-08-2(Hazardous Substances Data)

Usage

Description

3-Thiocyanatopropyltriethoxysilane is a bifunctional, sulfur-containing organosilane for rubber applications in combination with white fillers containing silanol groups. In silane industry, it has good features that includes: It can improve reinforcing properties of fillers that contain hydroxyl groups. It can improve physical and mechanical properties of vulcanizates. It can improve tensile strength, tearing strength and abrasive resistance and reduce compression set of vulcanizates. In addition, it can reduce the viscosity and improve the processability of rubber products.

Chemical Properties

Straw to yellowish liquid with mild odor

Flammability and Explosibility

Notclassified

InChI:InChI=1/C10H21NO3SSi/c1-4-12-16(13-5-2,14-6-3)9-7-8-15-10-11/h4-9H2,1-3H3

Upstream product

• 5089-70-3 (3-chloropropyl)triethoxysilane 
• 540-72-7 sodium thiocyanide 
• 333-20-0 potassium thioacyanate 

Relevant articles and documents

Acyl iodides in organic synthesis. Reactions of acetyl iodide with urea, thiourea, and their N,N′-disubstituted derivatives

Acetyl iodide reacted with urea and its derivatives to give the corresponding N-substituted products. The reactions of acetyl iodide with thiourea, N,N′-dimethylthiourea, imidazolidine-2-thione, and hexahydropyrimidine-2-thione resulted in the formation o

PROCESS FOR PREPARATION OF THIOCYANATO[!MINUS!]BEARING ORGANOALKOXYSILANES

A process for the preparation of (D) thiocyanato-bearing organoalkoxysi lanes represented by the general formula (3) NCS-R1-Si(OR2)nR33-n (where R1 is a divalent hydrocarbon group having 1 to 6 carbon atoms, R2 and R3 are monovalent hydrocarbon groups, and the subscript n is 0 to 3), in which (A) a thiocyanic acid salt represented by the general formula (1) MSCN (where M stands for an alkali metal) and (B) a halogenated alkylalkoxysilane represented by the general formula (2) XR1Si(OR2)nR33-n (where X is a halogen atom, and R1, R2, R3, and the subscript n are the same as above) are reacted in the presence of (C) a phase transfer catalyst.