2,3,4-trichloro-1-butene

Structural formula
	Structural formula without stereochemistry
General
Surname	2,3,4-trichloro-1-butene
other names	2,3,4-trichlorobut-1-ene; 2,3,4-trichloro-1-butylene; ( RS ) -2,3,4-trichlorobut-1-ene;
Molecular formula	C 4 H 5 Cl 3
Brief description	colorless liquid with a slightly pungent odor
External identifiers / databases
EC number	219-397-9
ECHA InfoCard	100.017.635
PubChem	17073
Wikidata	Q1833459
properties
Molar mass	159.44 g mol −1
Physical state	liquid
density	1.3430 g cm −3
Melting point	−52.2 ° C
boiling point	155-162 ° C
Vapor pressure	27 hPa (60 ° C)
solubility	very sparingly soluble in water (approx. 0.6 g l −1 at 20 ° C)
Refractive index	1.4944
safety instructions
H and P phrases	H: 302-330-315-319-335-351-410
	P: 101-273-280-314-501
MAK	DFG : no information, as carcinogenic ; Switzerland: 0.005 ml m −3 or 0.035 mg m −3 ;
Toxicological data	341 mg kg −1 ( LD 50 , rat , oral )
	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

2,3,4-Trichloro-1-butene is a chemical compound from the group of aliphatic , unsaturated halogenated hydrocarbons . Whenever 2,3,4-trichloro-1-butene is mentioned in this article or in other scientific literature without a prefix, the racemate is always meant, i.e. a 1: 1 mixture of ( R ) -2,3,4- Trichloro-1-butene and ( S ) -2,3,4-trichloro-1-butene.

properties

2,3,4-Trichloro-1-butene is a flammable, hardly inflammable, colorless liquid with a slightly pungent odor, which is very sparingly soluble in water. The compound decomposes at high temperatures, producing hydrogen chloride and phosgene .

use

2,3,4-Trichloro-1-butene is used as an intermediate in the production of chloroprene .

safety instructions

The vapors of 2,3,4-trichloro-1-butene can form an explosive mixture with air ( flash point 63 ° C, ignition temperature approx. 530 ° C).

Individual evidence

↑ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m Entry on 2,3,4-trichloro-1-butene in the GESTIS substance database of the IFA , accessed on December 25, 2016(JavaScript required) .
^ Entry on 2,3,4-trichloro-1-butene in the Hazardous Substances Data Bank , accessed December 25, 2016.
↑ Entry on 2,3,4-trichlorobut-1-ene in the Classification and Labeling Inventory of the European Chemicals Agency (ECHA), accessed on December 27, 2016. Manufacturers or distributors can expand the harmonized classification and labeling .
↑ Schweizerische Unfallversicherungsanstalt (Suva): Limits - Current MAK and BAT values (search for 2431-50-7 or 2,3,4-trichloro-1-butene ), accessed on September 22, 2019.
↑ OECD : Screening Information Dataset (SIDS) Initial Assessment Report (SIAR) for 1-butene, 2,3,4-trichloro- , accessed on December 25, 2016.

[GESTIS-1] ↑ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m Entry on 2,3,4-trichloro-1-butene in the GESTIS substance database of the IFA , accessed on December 25, 2016(JavaScript required) .

[HSDB-2] Entry on 2,3,4-trichloro-1-butene in the Hazardous Substances Data Bank , accessed December 25, 2016.

[CLP_100.017.635-3] Entry on 2,3,4-trichlorobut-1-ene in the Classification and Labeling Inventory of the European Chemicals Agency (ECHA), accessed on December 27, 2016. Manufacturers or distributors can expand the harmonized classification and labeling .

[4] Schweizerische Unfallversicherungsanstalt (Suva): Limits - Current MAK and BAT values (search for 2431-50-7 or 2,3,4-trichloro-1-butene ), accessed on September 22, 2019.

[SIDS-5] OECD : Screening Information Dataset (SIDS) Initial Assessment Report (SIAR) for 1-butene, 2,3,4-trichloro- , accessed on December 25, 2016.