To install click the Add extension button. That's it.

The source code for the WIKI 2 extension is being checked by specialists of the Mozilla Foundation, Google, and Apple. You could also do it yourself at any point in time.

4,5
Kelly Slayton
Congratulations on this excellent venture… what a great idea!
Alexander Grigorievskiy
I use WIKI 2 every day and almost forgot how the original Wikipedia looks like.
What we do. Every page goes through several hundred of perfecting techniques; in live mode. Quite the same Wikipedia. Just better.
.
Leo
Newton
Brights
Milds

From Wikipedia, the free encyclopedia

Acenaphthene
Skeletal formula
Ball-and-stick model
Names
Preferred IUPAC name
1,2-Dihydroacenaphthylene
Other names
1,8-Ethylenenaphthalene
peri-Ethylenenaphthalene
Naphthyleneethylene
Tricyclo[6.3.1.04,12]dodecapentaene
Tricyclo[6.3.1.04,12]dodeca-1(12),4,6,8,10-pentaene
Identifiers
3D model (JSmol)
ChEBI
ChEMBL
ChemSpider
ECHA InfoCard 100.001.336 Edit this at Wikidata
EC Number
  • 201-469-6
KEGG
RTECS number
  • AB1000000
UNII
UN number 3077
  • InChI=1S/C12H10/c1-3-9-4-2-6-11-8-7-10(5-1)12(9)11/h1-6H,7-8H2 checkY
    Key: CWRYPZZKDGJXCA-UHFFFAOYSA-N checkY
  • InChI=1/C12H10/c1-3-9-4-2-6-11-8-7-10(5-1)12(9)11/h1-6H,7-8H2
    Key: CWRYPZZKDGJXCA-UHFFFAOYAW
  • c2cc1cccc3c1c(c2)CC3
  • c1cc2cccc3c2c(c1)CC3
Properties
C12H10
Molar mass 154.212 g·mol−1
Appearance White or pale yellow crystalline powder
Density 1.024 g/cm3
Melting point 93.4 °C (200.1 °F; 366.5 K)
Boiling point 279 °C (534 °F; 552 K)
0.4 mg/100 ml
Solubility in ethanol slight
Solubility in chloroform slight
Solubility in benzene very soluble
Solubility in acetic acid soluble
Vapor pressure 0.001 to 0.01 mmHg at 68°F ; 5 mmHg at 238.6°F[1]
-.709·10−6 cm3/g
Thermochemistry[2]
190.4 J mol−1 K−1
188.9 J mol−1 K−1
70.3 kJ/mol
Hazards
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth 2: Intense or continued but not chronic exposure could cause temporary incapacitation or possible residual injury. E.g. chloroformFlammability 1: Must be pre-heated before ignition can occur. Flash point over 93 °C (200 °F). E.g. canola oilInstability 1: Normally stable, but can become unstable at elevated temperatures and pressures. E.g. calciumSpecial hazards (white): no code
2
1
1
Flash point 135 °C (275 °F; 408 K)
> 450 °C (842 °F; 723 K)
Safety data sheet (SDS) ICSC 1674
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
☒N verify (what is checkY☒N ?)

Acenaphthene is a polycyclic aromatic hydrocarbon (PAH) consisting of naphthalene with an ethylene bridge connecting positions 1 and 8. It is a colourless solid. Coal tar consists of about 0.3% of this compound.[3]

YouTube Encyclopedic

  • 1/4
    Views:
    23 156
    2 629
    28 791
    2 079
  • 31.07 Polycyclic Aromatic Hydrocarbons and Annulenes
  • Confirmative Tests for Thiourea
  • Experimental determination of melting point of an organic compound #experiment #BSc #BCU #SGKmistry
  • EPA 8270 GC/MS Quality Control

Transcription

Production and reactions

Acenaphthene was prepared the first time from coal tar by Marcellin Berthelot.[4] Later Berthelot and Bardy synthesized the compound by cyclization of α-ethylnaphthalene. Industrially, it is still obtained from coal tar together with its derivative acenaphthylene (and many other compounds).

Like other arenes, acenaphthene forms complexes with low valent metal centers. One example is (η6-acenaphthene)Mn(CO)3]+.[5]

Uses

It is used on a large scale to prepare naphthalene dicarboxylic anhydride, which is a precursor to dyes and optical brighteners.[3] Naphthalene dicarboxylic anhydride is the precursor to perylenetetracarboxylic dianhydride, precursor to several commercial pigments and dyes.[6][7]

References

  1. ^ National Toxicology Program, Institute of Environmental Health Sciences, National Institutes of Health (NTP). 1992. National Toxicology Program Chemical Repository Database. Research Triangle Park, North Carolina
  2. ^ John Rumble (June 18, 2018). CRC Handbook of Chemistry and Physics (99th ed.). CRC Press. pp. 5–3. ISBN 978-1138561632.
  3. ^ a b Griesbaum, Karl; Behr, Arno; Biedenkapp, Dieter; Voges, Heinz-Werner; Garbe, Dorothea; Paetz, Christian; Collin, Gerd; Mayer, Dieter; Höke (2000). "Hydrocarbons". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. doi:10.1002/14356007.a13_227.
  4. ^ Karl Griesbaum, Arno Behr, Dieter Biedenkapp, Heinz-Werner Voges, Dorothea Garbe, Christian Paetz, Gerd Collin, Dieter Mayer, Hartmut Höke (2000-06-15). Wiley-VCH Verlag GmbH & Co (ed.). Hydrocarbons. Ullmann's Encyclopedia of Industrial Chemistry.{{cite book}}: CS1 maint: multiple names: authors list (link)
  5. ^ S. B. Kim, S. Lotz, S. Sun, Y. K. Chung, R. D. Pike, D. A. Sweigart "Manganese Tricarbonyl Transfer (MTT) Agents" Inorganic Syntheses, 2010, Vol. 35, 109–128. doi:10.1002/9780470651568.ch6
  6. ^ K. Hunger. W. Herbst "Pigments, Organic" in Ullmann's Encyclopedia of Industrial Chemistry, Wiley-VCH, Weinheim, 2012. doi:10.1002/14356007.a20_371
  7. ^ Greene, M. "Perylene Pigments" in High Performance Pigments, 2009, Wiley-VCH, Weinheim. pp. 261-274.doi:10.1002/9783527626915.ch16
This page was last edited on 28 April 2023, at 13:12
Basis of this page is in Wikipedia. Text is available under the CC BY-SA 3.0 Unported License. Non-text media are available under their specified licenses. Wikipedia® is a registered trademark of the Wikimedia Foundation, Inc. WIKI 2 is an independent company and has no affiliation with Wikimedia Foundation.