PPT-EXPERIMENT 3 IDENTIFICATION OF PHENOLS

Phenols are organic compounds with a hydroxyl group attached directly to an aromatic ring They have the general formula Ar OH Examples of them include phenol hydroquinone resorcinol o cresol . YX = 0 1 o 2 = 1 2 o 3 henol, styrenated (96- O -- cresol) OHp US EPA, Office of Pollution Prevention and Toxics. Development of Chemical Categories, Chemical RightKnow Initiative. ht Ar. -OH). Phenols . are compounds of the general formula . Ar. -OH, where . Ar. - is phenyl, substituted phenyl, or one of the other aryl groups. . I. Structure . and nomenclature:. Phenols . differ from alcohols in having the -OH group attached directly to an aromatic . Alcohol . – alkyl chain attached to an –OH. . R-OH. Phenol . - aromatic attached to an –OH. Nomenclature. 1. Name the longest chain of carbons which includes the carbon with the hydroxyl group.. Different Atomic Charge Schemes . for Predicting . p. Ka. . Variations . in . Substituted Anilines and . Phenols. KEVIN C. GROSS,1 PAUL G. . SEYBOLD,1 CHRISTOPHERM. . . HADAD2. 1Department . of Chemistry, Wright State University, Dayton, Ohio . Thiols. , . and ethers. Nomencalture. of alcohols. Use the end . ol. Examples. . Hydrogen bonding in alcohols and phenols. Alcohols and phenols form hydrogen bonds, and hence they have relatively high boiling points. This also makes the lower alcohols miscible with water. As the R group becomes larger, the solubility of alcohols in water decreases dramatically.. 1. Chapter 21. Phenols and Aryl Halides. Nucleophilic Aromatic Substitution. Ch. . 21. . - . 2. About The Authors. . These PowerPoint Lecture Slides were created and prepared by Professor William Tam and his wife, Dr. Phillis Chang. . Objective:. To know what phenol is. Success criteria:. Recognise phenol compounds. Recall . the reaction of phenol with bromine water. Compare the reactions of phenols to that of bromine. Explain the difference in reactivity between phenols and benzene. 12 GeV electrons. 40% lin. Pol.. Uncollimated. Collimated. Coherent Peak. GlueX. A Proposal to Jefferson Lab PAC 40 . The GlueX Collaboration. Curtis A. Meyer, GlueX Spokesperson. Outline. Lattice QCD and the meson spectrum.. Jamshedpur Cooperative College Jamshedpur. B. Sc. (. Chem. . Hons. ) Semester III. Outline. Nomenclature. Structure. Synthesis. Physical and Chemical Properties. Nomenclature. Phenols . are defined as compounds having hydroxyl group attached directly to a benzene nucleus. Its general formula is . Alcohols contain an OH group connected to a . a. saturated C (sp. 3. ). They are important solvents and synthesis intermediates. Phenols contain an OH group connected to a carbon in a benzene ring. Methanol, CH. J. Princess . Gracia. , M.. Sc. .,M.Phil.,. Assistant Professor,. Department of . Chemistry,. Bon Secours College for Women, . Thanjavur. .. Introduction-. . Phenols also called as phenolics are a class of chemical compounds consisting of a hydroxyl group (-OH) bonded directly to an aromatic hydrocarbon group.. Lecturer . Luma. . Amer. Department of . Pharmaceutical Chemistry. /Collage of pharmacy . 2 . ed. . stage.. Identification of Phenols. phenols are stronger acids than water and. will dissolve in 5% . AND KETONES. Both contain the carbonyl group (C=O), which lends to their chief chemical and physical properties.. Examples of them include formaldehyde, acetaldehyde, . propionaldehyde. , . benzaldehyde. Dr.Baqer A. Al-Mayyahi. 1. Phenolic Resin. Introduction. Phenolic resins are obtained by the reaction of phenols with aldehydes. Both parent compounds, phenol and formaldehyde, are by far the most important components in commercial phenolic resin production .