Journal of the Chemical SocietyThe Society., 1947 |
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Page 1089
... absorption and the difference in the absorption of the naphthylurethanes of the styrylcarbinols and of methanol coincides with the absorption of the styrylcarbinols themselves . TABLE I. Ultra - violet light absorption of CH ̧R • CH ...
... absorption and the difference in the absorption of the naphthylurethanes of the styrylcarbinols and of methanol coincides with the absorption of the styrylcarbinols themselves . TABLE I. Ultra - violet light absorption of CH ̧R • CH ...
Page 1091
... absorption bands around 2200 , 2800 , and 3100 A. The last two may be ascribed respectively to the phenyl- butadiene and to the partial phenyl chromophore , while the first probably represents a sum- mation of the low wave - length ...
... absorption bands around 2200 , 2800 , and 3100 A. The last two may be ascribed respectively to the phenyl- butadiene and to the partial phenyl chromophore , while the first probably represents a sum- mation of the low wave - length ...
Page 1387
... absorption spectra of new and previously - prepared 2 : 4 - dinitrophenylsemicarbazones of various aldehydes and ketones are recorded and shown to be , approximately , summation curves of the light absorption due to the reagent and that ...
... absorption spectra of new and previously - prepared 2 : 4 - dinitrophenylsemicarbazones of various aldehydes and ketones are recorded and shown to be , approximately , summation curves of the light absorption due to the reagent and that ...
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Common terms and phrases
absorption acetic acid acetone activity added addition alkali Amer amidine ammonia anhydride atoms band benzene boiling bromine Calc carbon carbon tetrachloride catalyst CH₂ Chem chemical chemistry chloroform compound concentrated condensation cooled crystallised crystals cyanide D.Sc decomp derivatives dilute dissolved distilled dried equiv ester evaporated experimental extracted with ether filtered filtrate formation formed Found fraction gave give H₂ heated hydrochloric acid hydrochloride hydrogen chloride hydrolysis iodide iodine isolated isotherm ketone l-arabinose lactone light petroleum b. p. liquid m. p. and mixed methanol method methyl alcohol mixed m. p. mixture molecular molecule nitration obtained oxide oxidised phenyl phosphoryl chloride picrate polymerisation potassium precipitated prepared pyridine reaction reduced pressure refluxed removed requires residue salt separated sodium hydroxide solid soluble solvent stirred structure sulphate sulphuric acid syrup vacuum vinyl acetate washed yellow yield