Quarterly Journal of the Chemical Society of London, Part 5, Pages 5005-6079 |
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Page 5119
... solution was clear . Then a 0.2 % solution of 2,4 - dinitro- phenylhydrazine in 2N - hydrochloric acid ( 300 ml . ) was added and the derivative was filtered off and washed with water . Benzaldehyde 2,4 - dinitrophenylhydrazone , after ...
... solution was clear . Then a 0.2 % solution of 2,4 - dinitro- phenylhydrazine in 2N - hydrochloric acid ( 300 ml . ) was added and the derivative was filtered off and washed with water . Benzaldehyde 2,4 - dinitrophenylhydrazone , after ...
Page 5298
... solution of sulphuric acid in ethanol and heating at 115 ° for ca. 10-15 min . Light petroleum ( b . p . 60—80 ° ) was used throughout . Unless otherwise stated , all products gave a single spot on chromatograms and their infrared ...
... solution of sulphuric acid in ethanol and heating at 115 ° for ca. 10-15 min . Light petroleum ( b . p . 60—80 ° ) was used throughout . Unless otherwise stated , all products gave a single spot on chromatograms and their infrared ...
Page 6014
... solution into an excess of standard acid and back- titration . Hydroxylamine was determined by reduction to ammonia with Devarda's alloy in alkaline solution , and distillation . Ammonia in the presence of hydroxylamine was determined ...
... solution into an excess of standard acid and back- titration . Hydroxylamine was determined by reduction to ammonia with Devarda's alloy in alkaline solution , and distillation . Ammonia in the presence of hydroxylamine was determined ...
Contents
Peroxycomplexes of inorganic ions in hydrogen peroxidewater mixtures Part | 5020 |
Pyrazine metal complexes Part III | 5042 |
The reaction between ethane and oxygen at 600630 | 5106 |
103 other sections not shown
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Common terms and phrases
absorption acetic acid acetic anhydride acetone added alcohol aldehyde alkaline alumina Amax Amer anhydride aromatic atoms bands benzene benzyl boiling bond bromide Calc carbonate carboxylic Chem chloride chloroform chromatography cm.¹ complexes compound concentration constants crystallised crystals decomp decomposition derivative dilute dioxan distilled dried electron Elution ester ethanol ether ethyl acetate ethylene evaporated extracted filtered filtrate formation formed Found fraction gave H₂O heated hydration hydrogen hydrolysis infrared infrared spectrum iodide isomer isomeric ketone light petroleum lithium aluminium hydride m. p. and mixed methyl mixed m. p. mixture mole molecule needles nitric nitric oxide nitrogen observed obtained oxide ozonolysis peroxide phenyl potassium prepared proton pyridine radicals reaction refluxed requires residue resonance room temperature salt sodium hydroxide sodium methoxide solid solution solvent spectra steric structure substituent sulphate Table ultraviolet values Vmax washed yield