Journal of Chemistry of the United Arab Republic, Volumes 12-13National Research Centre, 1969 - Chemistry |
Contents
Studies on Flavanones I Action of Hydrazines and Hydroxy | 1 |
Studies on Flavanones II Action of Thiourea Ethylcyano | 17 |
Polarography of Titanium V Fluoride Complexes of Tetravalent | 33 |
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absorption acetic acid acetyl Ain Shams University alkaline aluminium chloride amines ammonium anhydrous aqueous aromatic bands Belayim benzene boiling Cairo Cairo University calcium Capryllactam carbon carbonyl catalyst chalcone Chem Chemical Chemistry chloride chromatography cm-¹ colourless crystals compounds concentration condensation cooling crude curves determined distilled ester ethanol ether ethyl alcohol evaporation Experimental extraction filtered flotation formation Found fraction heated hydrate hydrazine hydrocarbons hydrochloric acid hydrochloride hydrogen hydrolysis increase infrared spectra isatin KMnO4 lipid method mole molecular NaOH naphthenate National Research Centre nitrogen obtained oxidation pectin peroxide petroleum phenylhydrazine polygalacturonase polymer potassium potassium hydroxide prepared presence pulp R₁ reaction mixture refluxed resin sample sodium hydroxide soluble solution solvent stearyl alcohol sterol sulphate sulphonate sulphuric surface Table titration U.A.R. J. Chem viscosity yellow yield أن الملخص جامعة عبد على محمد وقد