Dodecylbenzene

Structural formula
General
Surname	Dodecylbenzene
other names	n -dodecylbenzene 1-phenyldodecane Dodecylbenzene Laurylbenzene
Molecular formula	C 18 H 30
Brief description	colorless liquid with an aromatic odor
External identifiers / databases
CAS number 123-01-3 EC number 204-591-8 ECHA InfoCard 100.004.175 PubChem 31237 Wikidata Q414469
properties
Molar mass	246.44 g mol −1
Physical state	liquid
density	0.86 g cm −3 (20 ° C)
Melting point	−7 ° C
boiling point	331 ° C
Vapor pressure	0.1 hPa (50 ° C)
solubility	practically insoluble in water
Refractive index	1.482 (20 ° C)
safety instructions
GHS labeling of hazardous substances no GHS pictograms H and P phrases H: 413 P: no P-phrases
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

Dodecylbenzene is a chemical compound from the group of aromatic hydrocarbons or alkylbenzenes .

Extraction and presentation

Dodecylbenzene is obtained from petroleum in the petrochemical industry and can also be produced from benzene and haloalkanes by Friedel-Crafts alkylation .

properties

Dodecylbenzene is a colorless liquid with an aromatic odor. It has a dynamic viscosity of 7 mPas at 20 ° C. When heated to a high temperature, the compound decomposes, producing carbon monoxide , carbon dioxide and irritating vapors and gases. The technical product is a mixture of isomers , which means that the boiling point and other physical properties vary depending on the composition.

use

Dodecylbenzene is used in the manufacture of detergents and cleaning agents (e.g. sodium dodecylbenzene sulfonate ). It is also used as transformer oil . In polyvinyl chloride , the compound acts as a thinner to reduce the viscosity of the polymer.

literature

• OH Iversen: Studies of the carcinogenesis and tumorigenesis of skin applications of dodecylbenzene on hairless mice . In: Br J Ind Med. , 1989 , 46  (9), pp. 608-616; PMID 2506921 ; PMC 1009835 (free full text).

Individual evidence

1. ↑ ^{a b c d e f g h} Entry on dodecylbenzene in the GESTIS substance database of the IFA , accessed on March 26, 2017(JavaScript required) .
2. ↑ Data sheet 1-Phenyldodecane from Sigma-Aldrich , accessed on July 1, 2010 ( PDF ).
3. ↑ alkylbenzenes (science-online)
4. ↑ OECD : Screening Information Dataset (SIDS) Initial Assessment Report (SIAR) for Benzene, dodecyl- , accessed on July 3, 2017.
5. ↑ Andreas Küchler: High voltage technology: Basics - Technology - Applications ; ISBN 978-3-540-78412-8 .
6. ^ Hans K. Felger, Alexander von Bassewitz: polyvinyl chloride. 2nd edition, Hanser Verlag, 1986, ISBN 3-446-14360-2 , p. 1089 ( limited preview in the Google book search).