Trichloroacetyl chloride

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Structural formula
Structural formula of trichloroacetyl chloride
General
Surname Trichloroacetyl chloride
other names
  • Trichloroacetic acid chloride
  • TCAC
Molecular formula C 2 Cl 4 O
Brief description

volatile yellow liquid with a pungent odor

External identifiers / databases
CAS number 76-02-8
EC number 200-926-7
ECHA InfoCard 100,000,843
PubChem 6420
Wikidata Q908780
properties
Molar mass 181.83 g mol −1
Physical state

liquid

density

1.62 g cm −3

Melting point

−57 ° C

boiling point

118 ° C (decomposition)

Vapor pressure

23 h Pa (20 ° C)

solubility

violently decomposes in water

Refractive index

1.469-1.471

safety instructions
GHS labeling of hazardous substances
06 - Toxic or very toxic 05 - Corrosive

danger

H and P phrases H: 302-314-330
EUH: 014
P: 260-280-284-305 + 351 + 338-310
Toxicological data

600 mg kg −1 ( LD 50ratoral )

Thermodynamic properties
ΔH f 0

−280.8 kJ / mol

As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . Refractive index: Na-D line , 20 ° C

Trichloroacetyl chloride is a chemical compound from the group of carboxylic acid halides . It is a colorless to yellowish liquid with a pungent odor.

Occurrence

Trichloroacetyl chloride can be formed from tetrachloroethene by reacting with ozone under UV light .

use

Trichloroacetyl chloride is used as an intermediate in the manufacture of drugs, pesticides , insecticides (e.g. Chlorpyriphos ) and other chemicals.

safety instructions

Trichloroacetyl chloride vapors can form explosive mixtures with the air at temperatures above 100 ° C ( flash point ).

See also

Web links

Individual evidence

  1. a b c d e f g h i Entry on trichloroacetyl chloride in the GESTIS substance database of the IFA , accessed on July 23, 2016(JavaScript required) .
  2. Entry on trichloroacetyl chloride at ChemBlink , accessed on February 25, 2011.
  3. David R. Lide (Ed.): CRC Handbook of Chemistry and Physics . 90th edition. (Internet version: 2010), CRC Press / Taylor and Francis, Boca Raton, FL, Standard Thermodynamic Properties of Chemical Substances, pp. 5-21.
  4. LfU: Handbook of Contaminated Sites and Groundwater Damage Cases: UV Oxidation in the Gas Phase (PDF; 868 kB).
  5. Data sheet TRICHLORO ACETYL CHLORIDE (TCAC) ( Memento of the original from March 4, 2016 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. (PDF; 68 kB) from TRANSMETAL LIMITED , accessed on April 21, 2013. @1@ 2Template: Webachiv / IABot / www.tmlind.com