Acenaphthene

Structural formula
General
Surname	Acenaphthene
other names	1,2-dihydroacenaphthylene; 1,8-ethylene naphthalene;
Molecular formula	C 12 H 10
Brief description	colorless needles
External identifiers / databases
EC number	201-469-6
ECHA InfoCard	100.001.336
PubChem	6734
Wikidata	Q415103
properties
Molar mass	154.21 g mol −1
Physical state	firmly
density	1.15 g cm −3 (20 ° C)
Melting point	95 ° C
boiling point	278 ° C
Vapor pressure	0.31 Pa (25 ° C)
solubility	almost insoluble in water; soluble in hot ethanol , benzene and chloroform ;
Refractive index	1.6048 (95 ° C)
safety instructions
H and P phrases	H: 315-319-335-410
	P: 261-273-305 + 351 + 338-501
	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

Acenaphthene (1,2-dihydroacenaphthylene; 1,8-ethylene naphthalene) is a white to slightly yellowish solid that belongs to the polycyclic aromatic hydrocarbons . Acenaphthene is found to 0.3% in coal tar .

properties

Acenaphthene is practically insoluble in water, but readily soluble in benzene , ether , chloroform and heated alcohol . The compound decomposes from 476 ° C.

use

Acenaphthene is required for the production of plastics, dyes, insecticides and pharmaceutical products, but mainly for the large-scale production of naphthalic anhydride . Technically, it is obtained by hydrogenating acenaphthylene .

Individual evidence

↑ ^a ^b ^c ^d ^e Entry on 1,2-dihydroacenaphthylene. In: Römpp Online . Georg Thieme Verlag, accessed on November 12, 2014.
↑ ^a ^b ^c ^d ^e ^f Entry on acenaphthene in the GESTIS substance database of the IFA , accessed on June 17, 2016(JavaScript required) .
↑ State Institute for Environmental Protection Baden-Württemberg: Substance behavior of gas works-specific PAHs , ISSN 0941-780X , 1997
↑ David R. Lide (Ed.): CRC Handbook of Chemistry and Physics . 90th edition. (Internet version: 2010), CRC Press / Taylor and Francis, Boca Raton, FL, Physical Constants of Organic Compounds, pp. 3-4.

[roempp-1] Entry on 1,2-dihydroacenaphthylene. In: Römpp Online . Georg Thieme Verlag, accessed on November 12, 2014.

[GESTIS-2] ↑ ^a ^b ^c ^d ^e ^f Entry on acenaphthene in the GESTIS substance database of the IFA , accessed on June 17, 2016(JavaScript required) .

[3] State Institute for Environmental Protection Baden-Württemberg: Substance behavior of gas works-specific PAHs , ISSN 0941-780X , 1997

[CRC90_3_4-4] David R. Lide (Ed.): CRC Handbook of Chemistry and Physics . 90th edition. (Internet version: 2010), CRC Press / Taylor and Francis, Boca Raton, FL, Physical Constants of Organic Compounds, pp. 3-4.