Quarterly Journal of the Chemical Society of London, Part 3 |
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Page 2582
... Carbon . By CORA W. AYERS , R. BELCHER , and T. S. WEST . The carbon content of organic compounds can be determined on samples of only 18-50 μg . with a precision equal to that obtained by micro - methods . The carbon dioxide is ...
... Carbon . By CORA W. AYERS , R. BELCHER , and T. S. WEST . The carbon content of organic compounds can be determined on samples of only 18-50 μg . with a precision equal to that obtained by micro - methods . The carbon dioxide is ...
Page 2662
... carbon dioxide was estimated by back- titration of the barium hydroxide solution to phenolphthalein . The results of these analyses are summarised in Tables 1 ( evacuated system ) and 2 ( oxygenated system ) . Concentrations of the ...
... carbon dioxide was estimated by back- titration of the barium hydroxide solution to phenolphthalein . The results of these analyses are summarised in Tables 1 ( evacuated system ) and 2 ( oxygenated system ) . Concentrations of the ...
Page 2922
... carbon atom of the pyridone ring was labelled ; its radioactivity fully accounted for that of the undegraded ring . A complication , however , arose . The carbon dioxide formed by hydrolysis of the cyano - group [ during the change ( I ) ...
... carbon atom of the pyridone ring was labelled ; its radioactivity fully accounted for that of the undegraded ring . A complication , however , arose . The carbon dioxide formed by hydrolysis of the cyano - group [ during the change ( I ) ...
Contents
ABEL E W Bennett M A and Wilkinson G | 2323 |
Bourne E J Hartigan J and Weigel H | 2332 |
Clark E R | 2344 |
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1,3,5-trinitrobenzene absorption acetic acid acetic anhydride acetone added alcohol alkaline alkyl Amer amine ammonia anhydride atom benzene boiling bond bromide Calc carbon Chem chloride chloroform chromatography complex compound concentration constant cooled crystallised crystals curve decomp derivatives diethylamine dilute dimer dioxan dioxide dissolved distilled dried eluted ester ethanol evaporated filtered filtrate formation formed Found fraction gave give glycollic acid glyoxylic acid heated hydride hydrochloric acid hydrolysis hydroxide infrared infrared spectrum iodide isolated isomer K₁ light petroleum b. p. lithium lithium aluminium hydride m. p. and mixed methyl methyl iodide mixed m. p. mixture mole molecular molecule nitrogen obtained oxidation oxygen perchlorate picrate polymer potassium precipitate prepared prisms pyridine reaction reduced refluxed requires residue room temperature salt sodium hydroxide solid solvent spectra stirred structure sulphuric acid Table titration ultraviolet values washed yield