Das Phenol ist das einfachste von Benzol abgeleitete Phenol mit nur einer Hydroxygruppe und der Summenformel C6H5OH. Weitere Phenole mit einer Hydroxygruppe, sogenannte einwertige Phenole, sind die Toluol-Derivate: die Kresole (o-, m- und p-Kresol), sowie die Naphthole (α- und β-Naphthol) und Thymol. Die bekanntesten Dihydroxybenzole (Diphenole oder zweiwertige Phenole), Phenole mit zwei Hy… Phenol (systematically named Benzenol, also called carbolic acid or phenolic acid) is an aromatic organic compound with the molecular formula C6H5OH. It is a white crystalline solid that is volatile. The molecule consists of a phenyl group (−C6H5) bonded to a hydroxy group (−OH). Mildly acidic, it requires … Zobraziť viac Phenol is an organic compound appreciably soluble in water, with about 84.2 g dissolving in 1000 mL (0.895 M). Homogeneous mixtures of phenol and water at phenol to water mass ratios of ~2.6 and higher … Zobraziť viac Because of phenol's commercial importance, many methods have been developed for its production, but the cumene process is the dominant technology. Cumene process Accounting for … Zobraziť viac Phenol was discovered in 1834 by Friedlieb Ferdinand Runge, who extracted it (in impure form) from coal tar. Runge called phenol "Karbolsäure" (coal-oil-acid, carbolic acid). … Zobraziť viac Phenol and its vapors are corrosive to the eyes, the skin, and the respiratory tract. Its corrosive effect on skin and mucous membranes is due to a protein-degenerating … Zobraziť viac The major uses of phenol, consuming two thirds of its production, involve its conversion to precursors for plastics. Condensation with … Zobraziť viac Phenol is a normal metabolic product, excreted in quantities up to 40 mg/L in human urine. The Zobraziť viac Cryptanaerobacter phenolicus is a bacterium species that produces benzoate from phenol via 4-hydroxybenzoate. Rhodococcus phenolicus is a bacterium species able to … Zobraziť viac
Frémy
WebFrémy's salt is a chemical compound with the formula (K 4 [ON (SO 3) 2] 2 ), sometimes written as (K 2 [NO (SO 3) 2 ]). It a bright yellowish-brown solid, but its aqueous solutions are bright violet. [1] [2] The related sodium salt, disodium nitrosodisulfonate (NDS, Na 2 ON (SO 3) 2, CAS 29554-37-8) is also referred to as Frémy's salt. [3] WebPhenol ist der einfachste Vertreter der Phenole. Mit Basen bildet Phenol Salze, die Phenolate. Phenol wird hauptsächlich als Ausgangsstoff zur Herstellung von … flexibility works
Dielektrizitätszahl-Liste - VEGA
WebPhenol Phenol 8,0 Phenolharz Phenol resin 7,4 Phosgen Phosgene 4,3 Phosphat Phosphate 4,0 Phosphor, flüssig Phosphorus, liquid 3,9 Phosphorsalz Phosphorus salt 4,0 ... Salzwasser Salt water 32,0 Sauerstoff Oxygen 1,5 Q R S VEGA Grieshaber KG www.vega.com 6/8. Dielektrizitätszahl-Liste Substanz Substance Dielektrizitäts-zahl WebPhenol Phenol 8,0 Phenolharz Phenol resin 7,4 Phosgen Phosgene 4,3 Phosphat Phosphate 4,0 Phosphor, flüssig Phosphorus, liquid 3,9 Phosphorsalz Phosphorus salt 4,0 Pinan … WebPhenol wurde erstmals 1953 von W. Grassman und G. Deffner zur denaturierenden Proteinextraktion eingesetzt, ab 1956 wurde Phenol von K. Kirby zur RNA-Extraktion … flexibility works awards