3,4,5-TRICHLOROTHIOPHENE-2-CARBONYL CHLORIDE Property

Melting point:

38-40°C

Boiling point:

124-125°C 10mm

Flash point:

124-125°C/10mm

Sensitive 

Moisture Sensitive

BRN 

1427060

Safety

Risk Statements 

34

Safety Statements 

26-36/37/39-45

RIDADR 

3261

HazardClass 

8

PackingGroup 

II

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H314Causes severe skin burns and eye damage

H318Causes serious eye damage

Precautionary statements

P301+P330+P331IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.

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.

P405Store locked up.

3,4,5-TRICHLOROTHIOPHENE-2-CARBONYL CHLORIDE Chemical Properties,Usage,Production

Preparation

3,4,5-Trichlorothiophene-2-carbonyl chloride synthesis: A mixture of 3,4,5-trichloro-2-thiophenecarboxylic acid (20.4 g, 0.088 mol), SOCl2 (7.3 mL, 0.1 mol), and DMF (0.2 mL) in 80 mL of 1,2-dichloroethane was heated at reflux temperature for 3 h. The reaction mixture became homogeneous after 1 h of heating. The solution was cooled to 25℃, concentrated and placed under high vacuum to remove residual solvent, giving 22.0 g (98% wt.) of 3,4,5-trichloro-2-thiophenecarbonyl chloride as an oil which solidified on standing to an off-white powder; m.p. 37-41℃, having a GC area % purity > 99%.