1,4-dichlorobutane

Structural formula
General
Surname	1,4-dichlorobutane
other names	Tetramethylene dichloride
Molecular formula	C 4 H 8 Cl 2
Brief description	colorless liquid with an aromatic odor
External identifiers / databases
EC number	203-778-1
ECHA InfoCard	100.003.436
PubChem	8059
ChemSpider	21106032
Wikidata	Q161526
properties
Molar mass	127.01 g mol −1
Physical state	liquid
density	1.14 g cm −3 (25 ° C)
Melting point	−38 ° C
boiling point	155 ° C
Vapor pressure	5 mbar (20 ° C)
solubility	sparingly soluble in water (2.4 g l −1 at 20 ° C)
Refractive index	1.4522
safety instructions
GHS labeling of hazardous substances Caution
H and P phrases	H: 226-412
	P: 210-273
Toxicological data	3420 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

1,4-dichlorobutane is an organic chemical compound from the group of chloroalkanes .

Manufacturing

1,4-dichlorobutane is formed when tetrahydrofuran is heated with hydrochloric acid (HCl). The cyclic ether tetrahydrofuran (THF) is converted into the aliphatic 4-chlorobutanol in a first substitution reaction .

This intermediate product is converted into 1,4-dichlorobutane in a further substitution reaction.

properties

1,4-dichlorobutane is a flammable colorless liquid with an aromatic odor that is sparingly soluble in water. It has a dynamic viscosity of 1.46 mPa · s at 20 ° C.

use

1,4-dichlorobutane is a starting material for the nylon synthesis.

safety instructions

The vapors of 1,4-dichlorobutane can form an explosive mixture with air ( flash point 52 ° C, ignition temperature 220 ° C).

Individual evidence

↑ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j Entry on 1,4-dichlorobutane in the GESTIS substance database of the IFA , accessed on January 14, 2020(JavaScript required) .
↑ David R. Lide (Ed.): CRC Handbook of Chemistry and Physics . 85th edition. (Internet version: 2005), CRC Press / Taylor and Francis, Boca Raton, FL, Physical Constants of Organic Compounds, pp. 3-168.
↑ Data sheet 1,4-dichlorobutane (PDF) from Merck , accessed on March 13, 2012.
^ Author collective: Organikum . 22nd edition, Wiley-VCH, 2004, ISBN 978-3-527-31148-4 .

[GESTIS-1] ↑ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j Entry on 1,4-dichlorobutane in the GESTIS substance database of the IFA , accessed on January 14, 2020(JavaScript required) .

[2] David R. Lide (Ed.): CRC Handbook of Chemistry and Physics . 85th edition. (Internet version: 2005), CRC Press / Taylor and Francis, Boca Raton, FL, Physical Constants of Organic Compounds, pp. 3-168.

[Merck-3] Data sheet 1,4-dichlorobutane (PDF) from Merck , accessed on March 13, 2012.

[4] Author collective: Organikum . 22nd edition, Wiley-VCH, 2004, ISBN 978-3-527-31148-4 .