Journal of the Chemical SocietyThe Society., 1949 |
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Page 370
... curve shows separation of α - form , changing rapidly to ẞ " -form with sharp rise in temperature . The heating curve shows the presence of ẞ " - and ẞ ' - forms . 2 - Oleodistearin . — On cooling to room temperature ( 18 ° ) there is ...
... curve shows separation of α - form , changing rapidly to ẞ " -form with sharp rise in temperature . The heating curve shows the presence of ẞ " - and ẞ ' - forms . 2 - Oleodistearin . — On cooling to room temperature ( 18 ° ) there is ...
Page 537
... curve serves for the determination of a number of metals with dithizone . MANY metals can be determined ... curve . The metal content of an unknown can now be obtained from this curve by interpolation . Traces of the metal being ...
... curve serves for the determination of a number of metals with dithizone . MANY metals can be determined ... curve . The metal content of an unknown can now be obtained from this curve by interpolation . Traces of the metal being ...
Page 587
... curve II ) . In faintly alkaline solutions this larger wave is no longer visible ; wave A is surmounted by a pronounced maximum ( Fig . 1 , curve III ) and a drawn - out wave C appears at much more negative 12 11 10 9 Current ...
... curve II ) . In faintly alkaline solutions this larger wave is no longer visible ; wave A is surmounted by a pronounced maximum ( Fig . 1 , curve III ) and a drawn - out wave C appears at much more negative 12 11 10 9 Current ...
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Common terms and phrases
absorption acetic acid acetic anhydride acetone added addition alkaline aluminium aluminium chloride Amer ammonia anhydride atom benzene boiling bond bromide Calc carbon catalyst CH₂ Chem chloroform colourless needles compound concentrated condensation cooled crystallised crystals curve cyanide D.Sc decomp decomposition derivatives dilute dissolved distilled disulphide dried ester ethyl acetate ethyl alcohol ethylene evaporated extracted with ether filtered filtrate formed Found fraction gave give m. p. heated hydrochloric acid hydrogen chloride hydrolysis iodide isolated ketone kojic acid light petroleum b. p. m. p. and mixed methanol method mixed m. p. mixture molecule obtained oxide phenyl picrate potassium hydroxide precipitated prepared prisms pyridine reaction reagent reduced pressure refluxed requires residue room temperature salt separated sodium hydroxide solid soluble solution solvent stirred structure sulphate sulphide sulphone sulphuric acid thionyl chloride washed yellow yield