1,3-Dichloropropene

  • Chlorallylchlorid
  • 1,3-dichloro -1-propene
  • 1,3 -DCP
  • 542-75-6 ( mixture of isomers )
  • 10061-01-5 cis -1 ,3- dichloropropene
  • 10061-02-6 trans-1 ,3 -dichloropropene
  • 8003-19-8 as a mixture with 1,3- dichloropropane

Volatile, flammable, colorless to yellow liquid with a sweet pungent odor chloroformartigem

Liquid

1.23 g · cm -3 1.22 g · cm -3 ( cis)

-84 ° C

  • 37 hPa ( 20 ° C)
  • 53-69 hPa (20 ° C) ( cis)

Poorly in water (1 g · l-1 at 20 ° C)

Risk

  • 470 mg · kg -1 ( LD50, rat, oral)
  • 640 mg · kg -1 ( LD50, mouse, oral)

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1,3- dichloropropene is a chemical compound selected from the group consisting of unsaturated chlorinated hydrocarbons and alkenes. It is usually in the form of an equilibrium mixture of the isomers cis-and trans -1 ,3- dichloropropene.

History

1,3 -dichloropropene was introduced in 1945 as an artificial soil fumigant. From 1956 it was used extensively by restrictions on the use of ethylene dibromide, Dibromchlorpropen and methyl bromide.

Production and representation

1,3- dichloropropene is a by- product in the production of allyl chloride by chlorination of propylene at high temperature. Alternatively it may be obtained by dehydration of 1,3- dichloropropanol with POCl3 or with P4O10 in benzene. The technical product often contains 1,2- dichloropropane and 2,3- dichloropropene as impurities.

Use

1,3- dichloropropene was used primarily as a pesticide and nematicide in agriculture as a soil fumigant and a disinfectant (for example, in the container fumigation ), the cis -1 ,3- dichloropropene is effective. In Germany dichloropropene was frequently detected in groundwater, with the insert in Germany completely banned since 2003, Africa and the U.S., but still common (eg, tobacco, carrots, potatoes and strawberries) is.

Safety

The vapors of 1,3- dichloropropene can combine with air to form an explosive mixture (flash point 27 ° C). The compound decomposes at high temperatures, with hydrogen chloride. It is still classified 2 and mutagen category 3 classified as carcinogenic category. 1,3 -dichloropropene is highly irritating to skin, eyes and respiratory tract and has a narcotic effect.

Proof

1,3- dichloropropene can be detected by gas chromatography after desorption.

CAS registry number 1,3-Dichloropropane PubChem Vapor pressure Dangerous Substances Directive (67/548/EEC) CRC Handbook of Chemistry and Physics Integrated Authority File
10525
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