phenols

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• PHÉNOLS — Dès le début du XIXe siècle, les chimistes avaient réussi à isoler des huiles moyennes du goudron de houille, agitées avec une solution concentrée de soude, un composé défini. La couche aqueuse, additionnée d’un acide minéral, laissait déposer… …   Encyclopédie Universelle

• Phenols — In organic chemistry, phenols, sometimes called phenolics, are a class of chemical compounds consisting of a hydroxyl group ( OH) bonded directly to an aromatic hydrocarbon group. The simplest of the class is phenol also called as carbolic acid… …   Wikipedia

• phenols — chemicals in wood smoke used in smoking fish, mainly responsible for retarding bacterial activity …   Dictionary of ichthyology

• phenols — phe·nol || fɪːnÉ‘l , nÉ”l / nÉ’l n. (Chemistry) poisonous acidic compound obtained from coal tar or benzene and used mainly as a disinfectant or antiseptic, carbolic acid; any hydroxyl derivative of benzene …   English contemporary dictionary

• Physical properties of phenols — ▪ Table Physical properties of phenols common name systematic name mp (°C) phenol benzenol   43 o cresol 2 methylbenzenol   31 m cresol 3 methylbenzenol   11 p cresol 4 methylbenzenol   35 pyrocatechol benzene 1,2 diol 105 resorcinol… …   Universalium

• Dictionary of natural phenols and polyphenols molecular formulas — Natural polyphenols molecular formulas are generally formed from C, H and O. The entries are sorted by mass. Formula Example Exact mass (u) C8H10O 4 Ethylphenol, others 122.073164 C6H6O3 Hydroxyquinol, others 126.031694 C7H6O3 2 Hydroxybenzoic… …   Wikipedia

• Коптюг — Коптюг, Валентин Афанасьевич Валентин Афанасьевич Коптюг Дата рождения: 9 июня 1931(1931 06 09) Место рождения: Юхнов, Западная область, СССР Дата смерти: 10 января 1997 …   Википедия

• Natural phenol — Quercetin, a typical flavonoid, is a natural phenol Natural phenols, bioavailable phenols, plant phenolics, low molecular weight phenols or phenoloids[1][2] …   Wikipedia

• phenol — phenolic /fi noh lik, nol ik/, adj. /fee nawl, nol/, n. Chem. 1. Also called carbolic acid, hydroxybenzene, oxybenzene, phenylic acid. a white, crystalline, water soluble, poisonous mass, C6H5OH, obtained from coal tar, or a hydroxyl derivative… …   Universalium

• Phenolic content in wine — The phenolic compounds in Syrah grapes contribute to the taste, color and mouthfeel of the wine. The phenolic compounds natural phenol and polyphenols in wine include a large group of several hundred chemical compounds that affect the taste,… …   Wikipedia

• Polyphenol — Plant derived polyphenol, tannic acid, formed by esterification of ten equivalents of the phenylpropanoid derived gallic acid to a monosaccharide (glucose) core from primary metabolism …   Wikipedia