SiSiB® PC5881

Octadecylsilane

SiSiB® PC5881 is a long-chain alkyl silane, commonly called OTMS. It is easy to be dissolved in ordinary organic solvent, e.g. hydrocarbon, ether, ketone, etc. It is easy to be hydrolyzed and condensed, generate polysiloxane.

SiSiB® PC5881 silane reducing agent is used for preparing hydrophobic coatings and self-assembled monolayers. It is sensitive toward water, irreversibly degrading to a siloxane polymer. It places a C18H39SiO3 "cap" on oxide surfaces. The formation of OTMS monolayers is used for converting hydrophilic surfaces to hydrophobic surfaces, e.g. for use in certain areas of nanotechnology and analytical chemistry.

Technical Data

CAS No. 3069-42-9

EINECS No. 221-339-2

Formula C21H46O3Si

Molecular Weight 374.68

Boiling Point 150°C [2mmHg]

Flash Point 140°C

Color and Appearance Colorless transparent liquid

Density 25/25°C 0.885

Refractive Index 1.4390[25°C]

Purity 95.0%

Application

Coupling Agent

This alkyl alkoxy silane is mainly used to deal with inorganic materials, e.g. glass, silica, Al2O3, Kaolin, pottery and porcelain, mica, SiC, talcum powder etc., in order to improve the property of blending with organic matter and water-proof, enhancing the mechanical property of the products.

Protect Historical Relics or Other Products from Water

Protect historical relics (esp. outdoor historical relics) from corrosion, freeze or efflorescence.

Fog-proof Preparation of Glass

Protect blank glass and coated glass (optical antireflex coating, clear silicone coating, vacuum antireflex coating, reflective coating)

Protect optical parts or precision instrument with graduations and metal frames.

Packing and Storage

SiSiB® PC5881 is supplied in 20Kg pail or 180Kg steel drum.

In the unopened original container SiSiB® PC5881 has a shelf life of one year in a dry and cool place.

For more about 7399 00 0 and Foam Stabilizer, contact us.

Sisib silane, as an excellent silicone supplier, offers a wide range of Liquid Silicone Rubber for you to choose from.