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Phenyltrimethoxysilane; PTMS (CAS#2996-92-1) Featured Image
  • Phenyltrimethoxysilane; PTMS (CAS#2996-92-1) 1

Phenyltrimethoxysilane; PTMS (CAS#2996-92-1)

Chemical Property:

Molecular Formula C9H14O3Si
Molar Mass 198.29
Density 1.062g/mLat 25°C(lit.)
Melting Point -25°C
Boling Point 233°C(lit.)
Flash Point 99°F
Water Solubility Reacts with water.
Vapor Presure 0-12790Pa at 20-25℃
Appearance liquid
Specific Gravity 1.064
Color colorless
BRN 2937896
Storage Condition Inert atmosphere,2-8°C
Sensitive 7: reacts slowly with moisture/water
Refractive Index n20/D 1.468(lit.)
Use Used as raw materials for the preparation of polymeric organosilicon compounds

Product Detail

Product Tags

Risk Codes R10 – Flammable
R36/37/38 – Irritating to eyes, respiratory system and skin.
R68/20/21/22 -
R20/21/22 – Harmful by inhalation, in contact with skin and if swallowed.
R14 – Reacts violently with water
Safety Description S7 – Keep container tightly closed.
S16 – Keep away from sources of ignition.
S26 – In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S36/37 – Wear suitable protective clothing and gloves.
S45 – In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)
S37/39 – Wear suitable gloves and eye/face protection
S36 – Wear suitable protective clothing.
UN IDs UN 1992 3/PG 3
WGK Germany 3
RTECS VV5252000
FLUKA BRAND F CODES 10-21
TSCA Yes
HS Code 29319090
Hazard Class 3.2
Packing Group III

 

Introduction

Phenyltrimethoxysilane is an organosilicon compound. The following is an introduction to the properties, uses, preparation methods and safety information of phenyltrimethoxysilanes:

 

Quality:

- Appearance: Phenyltrimethoxysilane is a colorless liquid.

- Solubility: soluble in non-polar organic solvents, such as methylene chloride, petroleum ether, etc.

- Stability: Stable at room temperature, but has the potential to decompose in direct sunlight.

 

Use:

Phenyltrimethoxysilane is widely used in the field of organic synthesis and surface modification, and the specific uses are as follows:

- Catalyst: It can be used as a catalyst for Lewis acid to promote organic reactions.

- Functional materials: can be used to prepare polymer materials, coatings, adhesives, etc.

 

Method:

Phenyltrimethoxysilane can be prepared by:

Phenyltrichlorosilane is reacted with methanol to form phenyltrimethoxysilane and hydrogen chloride gas is generated:

C6H5SiCl3 + 3CH3OH → C6H5Si(OCH3)3 + 3HCl

 

Safety Information:

- In case of contact with skin or eyes, rinse immediately with plenty of water and seek medical attention.

- Avoid inhaling vapors and use in a well-ventilated area.

- Avoid contact with oxidants and acids when storing.

- Wear appropriate personal protective equipment (PPE) such as safety glasses, gloves, etc. when in use.

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