单词 | phenol |
释义 | phenoln. Chemistry. 1. A colourless, mildly acidic, toxic, hygroscopic, crystalline compound, C6H5OH, obtained from coal tar, used widely in chemical synthesis and in dilute form as a disinfectant. Cf. carbolic acid n. at carbolic adj. 1. ΘΚΠ the world > matter > chemistry > organic chemistry > hydrocarbons > [noun] > benzene derivatives > phenols carbolic acid1835 phenol1849 phenic acid1852 phenylous acid1852 phenylic acid1853 phenol1857 phlorol1868 THC1968 1849 Jrnl. Chem. Soc. 1 247 The presence of carbolic acid in the tar has been confirmed by Laurent, who has analysed and described it under the name of hydrated oxide of phenyle (phenole, C12H5O, HO). 1866 W. Odling Lect. Animal Chem. v. 123 Castoreum..contains phenol, or coal-tar kreosote. 1890 Nature 4 Sept. The important and universally-known antiseptic and disinfectant, carbolic acid, or phenol. 1914 Science 10 July 75/1 The freezing-point modes of the two-component system dimethylpyrone-acid have been examined for a large number of organic acids and phenole. 1955 Sci. Amer. Aug. 75/1 Our trained minnows were able to detect phenol, a common pollutant, at concentrations far below those detectable by man. 1988 L. Stryer Biochem. (ed. 3) iv. 86 The protein can be separated from the RNA by treatment of the virus with phenol. 2001 Choice June 8 Some Manuka honey producers have developed a rating system..which measures the antibacterial power of the honey and relates this to the antibacterial power of phenol (a kind of antiseptic). 2. Any compound whose molecule contains one or more hydroxyl groups linked directly to a benzene ring. ΘΚΠ the world > matter > chemistry > organic chemistry > hydrocarbons > [noun] > benzene derivatives > phenols carbolic acid1835 phenol1849 phenic acid1852 phenylous acid1852 phenylic acid1853 phenol1857 phlorol1868 THC1968 1857 W. A. Miller Elements Chem. III. 568 The so-called phenols or alcohols derived from hydrocarbons of the benzene series by the displacement of an atom of hydrogen in the C6 group by the group OH. 1917 H. P. Armsby Nutrition of Farm Animals iii. 99 The aromatic products of putrefaction (indols and phenols) are found in part in the feces but are in large part resorbed. 1964 N. G. Clark Mod. Org. Chem. xxi. 431 The acidity of a phenol is increased by a nitro group located ortho and/or para to the functional group. 1987 Environment Now Oct.–Nov. 50/2 Fish are very sensitive to the presence of sulphates, chlorides, phenols, salts of heavy metals and pesticides which are not easily soluble in water. Compounds C1. phenol compound n. ΚΠ 1897 T. C. Allbutt et al. Syst. Med. IV. 33 Many substances present in urine—such as albumin, fatty acids, and phenol compounds—give a reaction with Pettenkoffer's test. 1991 P. Copeland Sound Recordings (BNC) 64 The phenol compounds were imported from Germany until the First World War cut off the supplies. phenol-forming adj. ΚΠ 1890 J. Cagney tr. R. von Jaksch Clin. Diagnosis vii. 244 A considerable portion of phenol-forming substance [Ger. Phenol bildender Substanz]. 1997 Tetrahedron Lett. 38 7578 A novel type of phenol-forming reaction has been developed using a palladium catalyst. phenol group n. ΚΠ 1859 Proc. Royal Soc. 1857–9 9 595 This metamorphosis appears to indicate that the new body still belongs directly to the phenol-group. 1999 Proc. National Acad. Sci. U.S.A. 96 9005/1 The hydroxymethylene group and -CH-S-CH3 were substituted by methyl and phenol groups, respectively. phenol poisoning n. ΚΠ 1897 T. C. Allbutt et al. Syst. Med. II. 948 An antidote to phenol poisoning. 1966 Proc. National Acad. Sci. U.S.A. 55 789 This fraction was later found to be responsible for several cases of phenol poisoning. C2. phenol-formaldehyde n. any of a class of plastics and resins made by condensation of phenols with formaldehyde; usually attributive. ΘΚΠ the world > matter > chemistry > polymer chemistry > industrial polymers (named) > [noun] hexamethylenediamine1894 cellulose acetate1895 bakelite1909 phenol-formaldehyde1911 Paxolin1918 methylcellulose1921 Saran1940 polyester resin1946 polyester fibre1951 Mylar1952 polychlorinated biphenyl1959 the world > matter > chemistry > polymer chemistry > industrial polymers (named) > [adjective] polychlorinated1895 phenol-formaldehyde1911 polychlorinated biphenyl1959 1911 Jrnl. Industr. & Engin. Chem. June 439/2 Under this name [sc. condensite], a new phenol-formaldehyde product is to be placed on the market. 1933 Archit. Rev. 73 1 The synthetic plastics of which the two best known and most fully developed are the Phenol-formaldehyde and the Urea-formaldehyde types. 1965 Wireless World Sept. 32 (advt.) New 10 pin (Decal) based valves type B10B, moulded in polypropylene and phenol formaldehyde. 1993 Harrowsmith Apr. 55/2 New four-inch-wide maple flooring was laid over exterior-grade plywood made with phenol-formaldehyde instead of urea-formaldehyde resin. phenol red n. a red crystalline solid, C19H14O5S, which is used as a pH indicator in the range 6.7 (yellow) to 8.3 (red), and in medicine is given intravenously as a test of kidney function; = phenolsulphonphthalein n. ΘΚΠ the world > matter > chemistry > chemical tests > indicators > [noun] > pH indicators phenolphthalein1875 phenolsulphonphthalein1898 phenol red1916 nitramine1922 1916 Jrnl. Washington Acad. Sci. 6 488 Phenol red and cresol red are undoubtedly the most reliable indicators of the series. 1956 L. E. H. Whitby & M. Hynes Med. Bacteriol. (ed. 6) xi. 151 Collect the supernatant fluid, add a drop of phenol red solution, neutralize with N NaOH, and centrifuge. 1990 T. G. Wreghitt & P. Morgan-Capner ELISA in Clin. Microbiol. Lab. xv. 193 The FH strain of M pneumoniae is initially grown in 8ml of a modified Hayflick's broth containing 1% glucose with phenol red as indicator. phenol resin n. a phenolic resin. ΘΚΠ the world > matter > chemistry > organic chemistry > hydrocarbons > [noun] > benzene derivatives > phenols > others phenetidine1851 nitrophenol1852 carvacrol1854 guaiacol1864 hydroquinone1865 iodophenol1868 pentachlorophenol1869 trichlorophenol1871 purpurogallin1872 xylenol1872 kosin1875 phloroglucinol1879 cerulignol1883 cannabinol1896 gossypol1899 thiophenol1899 phenol resin1911 oxine1927 nordihydroguaiaretic acid1944 1911 Jrnl. Industr. & Engin. Chem. July 519/1 The term novolak was the generic proposed name to designate all fusible soluble condensation products of phenols and formaldehyde of the type designated by Aylsworth as ‘phenol resins’. 1973 Materials & Technol. VI. viii. 591 Phenol resins are widely used in the furniture and woodworking industries. 1991 P. Copeland Sound Recordings (BNC) 64 He showed us the section, which comprised a core based on woodflour and phenol resin. C3. Prefixed to chemical terms, forming the names of compounds containing or derived from phenol. phenolcarboxylic adj. (also phenol carboxylic) phenolcarboxylic acid, any acid which contains a carboxyl group and a hydroxyl group bonded to the same benzene ring. ΘΚΠ the world > matter > chemistry > organic chemistry > organic acids > [noun] > carboxylic acids > miscellaneous others urobenzoic acid1836 adipic acid1838 azelaic acid1838 isethionic acid1838 rutinic acid1845 rutic acid1848 glyoxylic acid1856 malonic acid1859 piperic acid1863 butalanine1865 methacrylic acid1865 barbituric acid1866 pichuric acid1866 carboxylic acid1868 gluconic acid1871 xylic acid1872 xylidic acid1872 aconic acid1873 formobenzoic1873 nicotinic acid1873 hydracrylic acid1877 undecylenic acid1879 isonicotinic acid1883 isatoic acid1885 linolenic acid1887 hendecenoic acid1889 heptenoic acid1889 mannonic acid1890 phenolcarboxylic acid1893 naphthenic acid1894 aldonic acid1904 naphthaleneacetic acid1917 heptanoic acid1928 hexuronic acid1928 pantothenic acid1933 neuraminic acid1942 pantoic acid1945 penicillanic acid1953 mevalonic acid1957 retinoic acid1960 isobutyric acid- 1893 Science 6 Oct. 184/1 F. Bayer & Co...are now producing the periodides of the phenols and the phenolcarboxylic acids by subjecting mixtures of solutions of the alkaline salts of phenols and of alkaline iodides to the action of the electrical current. 1935 A. L. Winton & K. B. Winton Struct. & Composition Foods II. 15 The anthocyanidins are split up by hot alkali into phloroglucinol and a phenolcarboxylic acid. 1975 D. Jarvis tr. D. Hess Plant Physiol. 128 Phenol carboxylic acids, such as protocatechuic acid and gallic acid, occur widely. ΚΠ 1876 J. Harley Royle's Man. Materia Med. (ed. 6) 356 Dry powder of phenol-sodium. phenolsulphate n. a salt of phenolsulphuric acid. ΚΠ 1880 Jrnl. Amer. Chem. Soc. 2 51 Pure phenol, oxalic acid and barium phenolsulphate, were heated together. 1973 Jrnl. Medicinal Chem. 16 553/2 When the more vigorous conditions, which were reported to yield phenolsulfates, were employed, the 3,14-disulfate of naloxone was obtained. phenolsulphonic adj. phenolsulphonic acid, each of three isomeric crystalline acids, (HSO3)C6H4OH, the ortho and para isomers of which are obtained by the action of concentrated sulphuric acid on phenol. ΚΠ 1876 W. A. Tilden Introd. Study Chem. Philos. 245 (table) Phenol-sulphonic acid. 1964 N. G. Clark Mod. Org. Chem. xx. 410 The functional group so activates the nucleus that phenol reacts with concentrated sulphuric acid at 0° giving a mixture of the o- and p-phenolsulphonic acids. 1986 Jrnl. Gen. Microbiol. 132 1215 17 bacteria able to degrade orthanilic acid..and benzene-, toluene- and phenolsulphonic acids were isolated. phenolsulphuric adj. phenolsulphuric acid, a crystalline acid, C6H5OSO3H, obtained by heating phenol with anhydrous sulphuric acid. ΚΠ 1878 C. T. Kingzett Animal Chem. 237 Phenol-sulphuric acid. 1907 P. B. Hawk Pract. Physiol. Chem. xvii. 253 The most important of the ethereal sulphuric acids found in the urine are phenol-sulphuric acid, p-cresol-sulphuric acid, indoxyl-sulphuric acid and skatoxyl-sulphuric acid. 1989 Exper. Lung Res. 15 375 The mucus was..weighed, and the galactose content was determined by phenolsulfuric acid assay. This entry has been updated (OED Third Edition, December 2005; most recently modified version published online March 2022). < n.1849 |
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