2-chloropropene

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Structural formula
Structural formula of 2-chloropropene
General
Surname 2-chloropropene
other names
  • 2-chloroprop-1-en
  • 2-chloro-1-propene
  • Isopropenyl chloride
Molecular formula C 3 H 5 Cl
Brief description

colorless liquid with a pungent odor

External identifiers / databases
CAS number 557-98-2
EC number 209-187-5
ECHA InfoCard 100.008.353
PubChem 11203
Wikidata Q2593139
properties
Molar mass 76.53 g mol −1
Physical state

liquid

density

0.93 g cm −3

Melting point

−135 ° C

boiling point

23 ° C

Vapor pressure

915 mbar (20 ° C)

solubility
  • practically insoluble in water
  • soluble in ethanol and acetone
Refractive index

1.395 (20 ° C)

safety instructions
GHS labeling of hazardous substances
02 - Highly / extremely flammable 07 - Warning

danger

H and P phrases H: 224-319-335
P: 210-261-305 + 351 + 338
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

2-chloropropene is a chemical compound from the group of organochlorine compounds .

Extraction and presentation

2-chloropropene can be obtained by reacting propyne with hydrogen chloride . It can also be prepared by treating with 1,2-dichloropropane alcoholic potassium hydroxide and fractionating the 1-chloropropene formed at the same time .

properties

2-chloropropene is a very volatile, colorless liquid with a pungent odor, which is practically insoluble in water. In the presence of palladium catalysts, it isomerizes to allyl chloride .

use

2-chloropropene was used in the measurement of the photoionization cross-sections of allyl and 2-propenyl radicals.

safety instructions

The vapors of 2-chloropropene can form an explosive mixture with air ( flash point <−20 ° C).

literature

Individual evidence

  1. a b c d e f g h i j k Entry for CAS no. 557-98-2 in the GESTIS substance database of the IFA , accessed on April 24, 2016(JavaScript required) .
  2. ^ William M. Haynes: CRC Handbook of Chemistry and Physics, 95th Edition . CRC Press, 2014, ISBN 978-1-4822-0867-2 , pp. 3–118 ( limited preview in Google Book search).
  3. Data sheet 2-chloropropenes, 98% from Sigma-Aldrich , accessed on August 11, 2014 ( PDF ).
  4. Satyajit Sarker, Lutfun Nahar: Chemistry for Pharmacy Students: General, Organic and Natural Product Chemistry . John Wiley & Sons, 2013, ISBN 978-1-118-68753-6 ( limited preview in Google Book Search).
  5. ^ Entry on 2-chloropropenes in the Hazardous Substances Data Bank , accessed on August 11, 2014.
  6. ^ Paul Rylander: Catalytic in Organic Syntheses 1976 . Elsevier, 2012, p. 193 ( limited preview in Google Book search).
  7. Jason C. Robinson, Niels E. Sveum, Daniel M. Neumark: Determination of absolute photoionization cross sections for isomers of C3H5: allyl and 2-propenyl radicals. In: Chemical Physics Letters. 383, 2004, pp. 601-605, doi : 10.1016 / j.cplett.2003.11.075 .