1,4-dichlorobutane
Structural formula | |||||||||||||||||||
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General | |||||||||||||||||||
Surname | 1,4-dichlorobutane | ||||||||||||||||||
other names |
Tetramethylene dichloride |
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Molecular formula | C 4 H 8 Cl 2 | ||||||||||||||||||
Brief description |
colorless liquid with an aromatic odor |
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External identifiers / databases | |||||||||||||||||||
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properties | |||||||||||||||||||
Molar mass | 127.01 g mol −1 | ||||||||||||||||||
Physical state |
liquid |
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density |
1.14 g cm −3 (25 ° C) |
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Melting point |
−38 ° C |
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boiling point |
155 ° C |
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Vapor pressure |
5 mbar (20 ° C) |
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solubility |
sparingly soluble in water (2.4 g l −1 at 20 ° C) |
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Refractive index |
1.4522 |
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safety instructions | |||||||||||||||||||
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Toxicological data | |||||||||||||||||||
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 .