2-ethyl anthraquinone
Structural formula | ||||||||||||||||
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General | ||||||||||||||||
Surname | 2-ethyl anthraquinone | |||||||||||||||
other names |
2-ethyl-9,10-anthracenedione |
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Molecular formula | C 16 H 12 O 2 | |||||||||||||||
Brief description |
yellow odorless solid |
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properties | ||||||||||||||||
Molar mass | 236.27 g mol −1 | |||||||||||||||
Physical state |
firmly |
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density |
1.27 g cm −3 |
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Melting point |
108.8 ° C |
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boiling point |
approx. 400 ° C (994 hPa) |
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solubility |
practically insoluble in water (about 0.25 mg l −1 at 20 ° C) |
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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 . |
2-Ethylanthraquinone is a chemical compound from the group of anthraquinones .
Extraction and presentation
2-Ethylanthraquinone can be obtained by reacting phthalic anhydride and ethylbenzene . Other synthetic methods are also known.
properties
2-Ethylanthraquinone is a flammable, difficult to ignite, crystalline, yellow, odorless solid that is practically insoluble in water.
use
2-Ethylanthraquinone can be used as a photoinitiator for the crosslinking or degradation of polyethylene . The compound is also used to produce hydrogen peroxide by hydrogenation with the aid of palladium / polyaniline as catalysts .
Individual evidence
- ↑ a b c d e f g h i j k Entry on 2-ethylanetrachinone in the GESTIS substance database of the IFA , accessed on November 20, 2018(JavaScript required) .
- ↑ Renshun Xu, Xinwen Guo et al. a .: A Green Synthesis of 2-ethylanthraquinone from 2- (4'-ethylbenzoyl) Benzoic Acid over H-Beta Zeolite. In: Catalysis Letters. 107, 2006, p. 149, doi : 10.1007 / s10562-005-0009-3 .
- ↑ Google Patents: CN104803837A - Method for preparing 2-ethyl anthraquinone through one-step reaction of ethylbenzene and phthalic anhydride under catalysis of alkali desilication modified Hbeta molecular sieve - Google Patents , accessed November 20, 2018.
- ↑ Data sheet 2-Ethylanthraquinone, 98% from AlfaAesar, accessed on November 20, 2018 ( PDF )(JavaScript required) .
- ^ W. Arthur Green: Industrial Photoinitiators A Technical Guide . CRC Press, 2010, ISBN 978-1-4398-2746-8 , pp. 34 ( limited preview in Google Book search).