TRIMETHYLSILYL CHLOROSULFONATE Property

Melting point:

−26 °C(lit.)

Boiling point:

168-169 °C(lit.)

Density 

1.225 g/mL at 25 °C(lit.)

refractive index 

n20/D 1.424(lit.)

Flash point:

108 °F

form 

liquid

Specific Gravity

1.23

Hydrolytic Sensitivity

8: reacts rapidly with moisture, water, protic solvents

BRN 

1763675

Safety

Hazard Codes 

C

Risk Statements 

10-34

Safety Statements 

26-36/37/39-45

RIDADR 

UN 2920 8/PG 2

WGK Germany 

3

F 

10-21

TSCA 

No

HazardClass 

3.2

PackingGroup 

III

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H226Flammable liquid and vapour

H314Causes severe skin burns and eye damage

Precautionary statements

P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.

P233Keep container tightly closed.

P240Ground/bond container and receiving equipment.

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.

TRIMETHYLSILYL CHLOROSULFONATE Chemical Properties,Usage,Production

Uses

Trimethylsilyl chlorosulfonate may be used:

• in the sulfonation of small organic molecules
• in the synthesis of sulfonated polysulfone
• as sulfonating agent in the preparation of nano-structured organic-inorganic membranes for proton exchange membrane fuel cells (PEMFC) based on methacrylate and epoxy polymeric structures
• in the preparation of sulfonated polysulfone (sPS)/titanium dioxide (TiO₂) composite membranes for use in PEMFCs
• in the preparation of iodosobenzene sulfate, required for the synthesis of cyclic sulfates

General Description

Trimethylsilyl chlorosulfonate is commonly employed as sulfonating agent.