3-chloro-2-methylpropene

Structural formula
General
Surname	3-chloro-2-methylpropene
other names	Methallyl chloride; 3-chloroisobutene; 2-methylallyl chloride; gamma-chloroisobutylene; CMP;
Molecular formula	C 4 H 7 Cl
Brief description	colorless liquid with a pungent odor
External identifiers / databases
EC number	209-251-2
ECHA InfoCard	100.008.411
PubChem	11241
Wikidata	Q15632849
properties
Molar mass	90.55 g mol −1
Physical state	liquid
density	0.93 g cm −3
Melting point	<−80 ° C
boiling point	72 ° C
Vapor pressure	138 hPa (20 ° C)
solubility	heavy in water (0.5 g l −1 at 20 ° C)
Refractive index	1.4245
safety instructions
H and P phrases	H: 225-302 + 332-314-317-411
	P: 210-273-280-303 + 361 + 353-304 + 340 + 310-305 + 351 + 338-370 + 378-391
Toxicological data	848 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

3-chloro-2-methylpropene is a colorless, pungent smelling liquid. It belongs to the group of unsaturated halogenated hydrocarbons or halogen alkenes .

Extraction and presentation

It is by chlorination of 2-methyl-1-propene prepared.

properties

3-chloro-2-methylpropene is a volatile, colorless, polymerizable liquid with a pungent odor that is very sparingly soluble in water. It decomposes when heated, which can produce hydrogen chloride , chlorine and other toxic or corrosive substances.

use

3-chloro-2-methylpropene is used as an intermediate in the manufacture of insecticides .

safety instructions

The vapors of 3-chloro-2-methylpropene form an explosive mixture with air ( flash point −12 ° C, ignition temperature 540 ° C).

Web links

3-chloro-2-methylpropene [MAK Value Documentation, 1992]. The MAK Collection for Occupational Health and Safety. 2012, pp. 98-106 doi: 10.1002 / 3527600418.mb56347e0004

Individual evidence

↑ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l Entry on 3-chloro-2-methylpropene in the GESTIS substance database of the IFA , accessed on January 9, 2019(JavaScript required) .
↑ Francis A. Daniher, Peter E. Butler: addition of N, N-dichlorosulfonamides to unsaturates . In: The Journal of Organic Chemistry . tape 33 , no. December 12 , 1968, p. 4336-4340 , doi : 10.1021 / jo01276a006 .

↑ Entry on 3-chloro-2-methylpropene in the Classification and Labeling Inventory of the European Chemicals Agency (ECHA), accessed on August 1, 2016. Manufacturers or distributors can expand the harmonized classification and labeling .

↑ Otto Schales: Experiments with 3-chloro-2-methyl-propene (1). In: Reports of the German Chemical Society (A and B Series). 70, 1937, pp. 116-121, doi: 10.1002 / cber.19370700125 .

[GESTIS-1] ↑ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l Entry on 3-chloro-2-methylpropene in the GESTIS substance database of the IFA , accessed on January 9, 2019(JavaScript required) .

[DOI10.1021/jo01276a006-2] Francis A. Daniher, Peter E. Butler: addition of N, N-dichlorosulfonamides to unsaturates . In: The Journal of Organic Chemistry . tape 33 , no. December 12 , 1968, p. 4336-4340 , doi : 10.1021 / jo01276a006 .

[CLP_100.008.411-3] Entry on 3-chloro-2-methylpropene in the Classification and Labeling Inventory of the European Chemicals Agency (ECHA), accessed on August 1, 2016. Manufacturers or distributors can expand the harmonized classification and labeling .

[4] Otto Schales: Experiments with 3-chloro-2-methyl-propene (1). In: Reports of the German Chemical Society (A and B Series). 70, 1937, pp. 116-121, doi: 10.1002 / cber.19370700125 .