14799-94-1

Basic information

• Product Name: N-HEXYLMETHYLDICHLOROSILANE
• Synonyms: DICHLORO-HEXYL-METHYLSILANE;DICHLORO-N-HEXYLMETHYLSILANE;HEXYL-METHYL-DICHLOROSILANE;N-HEXYLMETHYLDICHLOROSILANE;dichlorohexylmethyl-silan;Methylhexyldichlorosilane
• CAS NO: 14799-94-1
• Molecular Formula: C₇H₁₆Cl₂Si
• Molecular Weight: 199.19
• EINECS: 238-864-8
• Product Categories: Dichlorosilanes;Dichlorosilanes (for Polysilanes);Functional Materials;Reagent for High-Performance Polymer Research;Si (Classes of Silicon Compounds);Si-Cl Compounds
• Mol File: 14799-94-1.mol
• Article Data: 12

Chemical Properties

• Melting Point: <0°C
• Boiling Point: 204-206 °C(lit.)
• Flash Point: 85°C
• Appearance: /
• Density: 0.992 g/mL at 20 °C(lit.)
• Vapor Pressure: 0.732mmHg at 25°C
• Refractive Index: n20/D 1.439
• CAS DataBase Reference: N-HEXYLMETHYLDICHLOROSILANE(CAS DataBase Reference)
• NIST Chemistry Reference: N-HEXYLMETHYLDICHLOROSILANE(14799-94-1)
• EPA Substance Registry System: N-HEXYLMETHYLDICHLOROSILANE(14799-94-1)

Safety Data

• Hazard Codes: C
• Statements: 34
• Safety Statements: 26-28-36/37/39-45
• RIDADR: UN 2987 8/PG 2
• WGK Germany: 1
• F: 10-21
• TSCA: Yes
• HazardClass: 8
• PackingGroup: II
• Hazardous Substances Data: 14799-94-1(Hazardous Substances Data)

Usage

General Description

N-HEXYLMETHYLDICHLOROSILANE is a chemical compound that is used in the production of silanes and siloxanes, which are important components in the manufacturing of silicone polymers. It is a colorless, flammable liquid with a strong, pungent odor. This chemical is known for its reactivity with water, releasing hydrochloric acid and forming a type of siloxane polymer. N-HEXYLMETHYLDICHLOROSILANE is used as a crosslinking agent in the production of silicone rubber and as a precursor in the synthesis of silicon compounds. It is also used in the production of specialty chemicals and coatings. However, it should be handled with care due to its hazardous properties, including its flammability and ability to cause skin and eye irritation.

InChI:InChI=1/C7H16Cl2Si/c1-3-4-5-6-7-10(2,8)9/h3-7H2,1-2H3

Upstream product

• 75-54-7 Dichloromethylsilane 
• 592-41-6 1-hexene 
• 187737-37-7 propene 
• 74-85-1 ethene 
• 26015-61-2 Methyl-hexyl-chlorosilan 
• 7642-09-3 cis-3-hexene 
• 13269-52-8 trans-3-Hexene 
• 4050-45-7 trans-2-hexene 
• 7688-21-3 cis-2-hexene 
• 544-10-5 1-Chlorohexane 
• 928-65-4 hexyltrichlorosilane 
• 75-79-6 Methyltrichlorosilane 
• 111-25-1 1-bromo-hexane 

Downstream Products

• 1873-90-1 3-n-hexyl-1,1,1,3,5,5,5-heptamethyltrisiloxane 
• 124-70-9 Dichloromethylvinylsilane 
• 75-78-5 dimethylsilicon dichloride 
• 592-41-6 1-hexene 
• 109-67-1 1-penten 

Relevant articles and documents

Hydrosilylation catalysed by activated nickel

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PROCESS FOR THE STEPWISE SYNTHESIS OF SILAHYDROCARBONS

The invention relates to a process for the stepwise synthesis of silahydrocarbons bearing up to four different organyl substituents at the silicon atom, wherein the process includes at least one step a) of producing a bifunctional hydridochlorosilane by a redistribution reaction, selective chlorination of hydridosilanes with an ether/HCI reagent, or by selective chlorination of hydridosilanes with SiCI4, at least one step b) of submitting a bifunctional hydridochloromonosilane to a hydrosilylation reaction, at least one step c) of hydrogenation of a chloromonosilane, and a step d) in which a silahydrocarbon compound is obtained in a hydrosilylation reaction.

Preparation of polycarboxylic acid-functionalized silica supported Pt catalysts and their applications in alkene hydrosilylation

A series of novel immobilized platinum catalysts was prepared by loading Pt onto silica particles modified with polycarboxylic acid groups such as diethylenetriaminepentaacetic acid (DTPA), nitrolotriacetic acid (NTA) and succinic acid (SA). The three modified heterogeneous Pt catalysts were characterized using infrared spectroscopy (IR), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), energy dispersive X-ray spectroscopy (EDS) and atomic absorption spectroscopy (AAS). The residual H2PtCl6 solutions were characterized using ultraviolet spectroscopy (UV). The polycarboxylic acid-functionalized silica supported Pt catalysts were used to catalyze alkene hydrosilylation and 1-hexene was chosen as a model alkene. The data indicated that the catalytic performance was strongly dependent on the properties of the polycarboxylic acid group bonded to the silica particles. Among them, DTPA-functionalized silica supported Pt (SiO2-DTPA-Pt) showed the best catalytic activity and reusability. Furthermore, some hydrosilylation reactions between other linear alkenes (1-heptene, 1-octene, 1-decene, 1-do-decene, 1-tetra-decene, 1-hexa-decene, 1-octa-decene, styrene or cis-hex-2-ene), or ring type alkenes (norbornene) with methyldichlorosilane could be catalyzed in the presence of these three Pt catalysts. Their high activities were more than 90%, and their selectivities were more than 99%, which were apparently better than homogeneous Pt catalysts. In addition, reactions with cyclohexene were also successfully catalyzed by the Pt catalysts. These results indicate that the polycarboxylic acid-functionalized silica gel supported Pt catalysts have potential value in industrial hydrosilylation reactions.