DI-TERT-BUTYLDICHLOROSILANE Chemical Properties

Melting point:

−15 °C(lit.)

Boiling point:

190 °C729 mm Hg(lit.)

Density 

1.009 g/mL at 25 °C(lit.)

refractive index 

n20/D 1.457(lit.)

Flash point:

143 °F

storage temp. 

2-8°C

form 

liquid

Specific Gravity

1.009

Hydrolytic Sensitivity

8: reacts rapidly with moisture, water, protic solvents

Sensitive 

Moisture Sensitive

BRN 

1739236

CAS DataBase Reference

18395-90-9(CAS DataBase Reference)

EPA Substance Registry System

Silane, dichlorobis(1,1-dimethylethyl)- (18395-90-9)

Safety Information

Hazard Codes 

C

Risk Statements 

34-37

Safety Statements 

26-36/37/39-45

RIDADR 

UN 2987 8/PG 2

WGK Germany 

3

F 

10-21

TSCA 

No

HazardClass 

8

PackingGroup 

II

HS Code 

29319090

MSDS

• Language:English Provider:SigmaAldrich
• Language:English Provider:ALFA

DI-TERT-BUTYLDICHLOROSILANE Usage And Synthesis

Purification Methods

Purify it by fractional distillation. 20 1.01. It is a colourless liquid with a pleasant odour and does not fume in moist air, but does not titrate quantitatively with excess of dilute alkali. [Tyler et al. J Am Chem Soc 70 2877 1948.] Di -tert-butyl silyl bis(trifluoromethanesulfonate) [85272 -31 -7] M 440.5, b 73.5 -7 4 . 5o/0.35mm, d 4 Purify it by fractional distillation at high vacuum. 20 1.36 (see pK for triflic acid). It is a pale yellow liquid which should be stored under argon. It is less reactive than the diisopropyl analogue. The presence of the intermediate monochloro compound can be detected by 1H NMR, (CHCl3): tert-Bu2Si(OTf)2 [ 1.25s], but impurities have 1.12s for tert-Bu2Si(H)OTf and 1.19s for tert-Bu2HSi(Cl)OTf. [Deslongchamps Tetrahedron Lett 23 4871 1982, Deslongchamps Aldrichimica Acta 17 72 1984.] TOXIC.

DI-TERT-BUTYLDICHLOROSILANE(18395-90-9)Related Product Information

• 3-CYANOPROPYLMETHYLDICHLOROSILANE
• DIISOPROPYLCHLOROSILANE
• DI-TERT-BUTYLCHLOROSILANE
• METHYLETHYLCHLOROSILANE
• ISOPROPYLMETHYLDICHLOROSILANE
• Dichlorodiethylsilane
• DIETHYLCHLOROSILANE
• Ethyldichlorosilane
• Dichlorosilane
• DIISOPROPYLSILANE
• T-BUTYLDICHLOROSILANE
• Chlorodimethylsilane
• DIISOPROPYLDICHLOROSILANE
• Dichlorodimethylsilane
• DI-TERT-BUTYLSILANE
• DICHLOROMETHYLSILANE
• DI-TERT-BUTYLDICHLOROSILANE
• DIETHYLSILANE