Tributylchlorosilane

Tributylchlorosilane Property

Boiling point:

250-252 °C (lit.)

Density 

0.879 g/mL at 25 °C (lit.)

refractive index 

n20/D 1.446(lit.)

Flash point:

220 °F

storage temp. 

Store at room temperature, keep dry and cool

form 

clear liquid

color 

Colorless to Light yellow

Specific Gravity

0.879

Water Solubility 

Reacts with water.

Sensitive 

Moisture Sensitive

Hydrolytic Sensitivity

8: reacts rapidly with moisture, water, protic solvents

BRN 

1742537

InChI

InChI=1S/C12H27ClSi/c1-4-7-10-14(13,11-8-5-2)12-9-6-3/h4-12H2,1-3H3

InChIKey

JSQJUDVTRRCSRU-UHFFFAOYSA-N

SMILES

[Si](CCCC)(CCCC)(CCCC)Cl

CAS DataBase Reference

995-45-9(CAS DataBase Reference)

NIST Chemistry Reference

Silane, tributylchloro-(995-45-9)

EPA Substance Registry System

Silane, tributylchloro- (995-45-9)

Safety

Hazard Codes 

C

Risk Statements 

34-37

Safety Statements 

26-36/37/39-45

RIDADR 

UN 2987 8/PG 2

WGK Germany 

1

F 

10-21

TSCA 

Yes

HazardClass 

8

PackingGroup 

II

HS Code 

29349990

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H314Causes severe skin burns and eye damage

Precautionary statements

P280Wear protective gloves/protective clothing/eye protection/face protection.

P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P363Wash contaminated clothing before reuse.

P405Store locked up.

Tributylchlorosilane Chemical Properties,Usage,Production

Description

Tributylchlorosilane is a silanising agent widely used as a surface modification reagent and coupling agent in various chemical processes. It enhances hydrophobicity and improves adhesion properties by reacting with hydroxyl groups on surfaces to form stable siloxane bonds. Therefore, it is valuable in applications such as coating materials, silicone polymer manufacturing, and reagents for chromatographic analysis. The mechanism is that the chlorosilane group reacts with the surface hydroxyl group, replacing the surface chlorine atom by a covalent bond, while the butyl group provides hydrophobic properties.

Uses

Chlorotri-n-butylsilane is as silylating agent. It can react with bromo-trifluoro-methane, to product tributyl-trifluoromethyl-silane.

Application

Tributylchlorosilane can be used as one of the chlorosilane compounds for the preparation of lithium sulfide. Lithium sulfide is the most important basic raw material in a new type of high-energy and high-safety solid-state lithium-ion battery.

General Description

Visit our Sensor Applications portal to learn more.

Purification Methods

Fractionally distil it and store it in small aliquots in sealed ampoules. [Gilman et al. J Am Chem Soc 74 1361 1952, Osthoff & Clark J Org Chem 24 219 1959, Beilstein 4 IV 4072.]