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Information Name: | Environmental chemicals | chemicals | Jing Chi Bose equipment |
Published: | 2014-12-30 |
Validity: | 0 |
Specifications: | Limited |
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Detailed Product Description: | Product Name: Phenol Phenol molecule by a hydroxy group directly attached to the benzene ring. According benzene Kekule formula, the hydroxyl groups are attached to the double bond of the chemical reagent, for enol structure. However, due to the stability of the benzene ring, such a structure is hardly converted to the keto form. Phenol resonance structure as above right. An oxygen atom of a phenolic hydroxyl group using sp hybridization environmental chemicals, and to provide one pair of lone electron benzene ring 6 carbon atoms together form a delocalized bond. Large π bond strengthened alcohol acidic chemicals factory, pushing electronic effects also strengthened polar hydroxyl OH bond, so the hydrogen ionization phenol hydroxyl group may come out. Chemical properties: can absorb moisture in the air and liquefaction. Special smell, very dilute solution has a sweet taste. Corrosive. Chemical reaction ability. With aldehydes, ketones reacted phenolic resin, bisphenol A, and acetic anhydride; the reaction of salicylic acid phenyl acetate, salicylate. May also be halo, hydrogenation, oxidation, alkylation, carboxylation, esterification, etherification and other reactions. Phenol is solid at ordinary temperature, can not be successfully react with sodium, if the use of heating and melting phenol, was added sodium metal method experiment, phenol easily restored, at the time of heating and the impact test results of phenol color change. Some people take the following methods in the teaching experiment Dongguan supply of various types of chemical reagents, simple operation, and achieved satisfactory results of the experiment. Was added in a test tube, 2-3 mL of anhydrous diethyl ether, take a piece of sodium metal bean size, the surface of the dry filter paper with kerosene, into diethyl ether, sodium can be seen does not react with diethyl ether. Then a small amount of phenol added to the tube again shaken, then observed sodium rapid reaction in a test tube, a large amount of gas. The principle of this experiment is to phenol dissolved in ether, the reaction of phenol with sodium to proceed smoothly. Environmental chemicals | chemicals | Jing Chi Bose equipment from Dongguan Changan Jing Chi Bose equipment operators offer. Dongguan Changan Jing Chi Bose equipment operators (www.jingchb.com) strong, credible, in Dongguan, Guangdong chemicals industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Jing Chi Bose equipment and you hand into the brilliant, for a better future! |
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Copyright © GuangDong ICP No. 10089450, Dongguan Changan Jing Chi Bose equipment operators All rights reserved.
Technical support: ShenZhen AllWays Technology Development Co., Ltd.
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You are the 9861 visitor
Copyright © GuangDong ICP No. 10089450, Dongguan Changan Jing Chi Bose equipment operators All rights reserved.
Technical support: ShenZhen AllWays Technology Development Co., Ltd.
AllSources Network's Disclaimer: The legitimacy of the enterprise information does not undertake any guarantee responsibility