Journal of the Chemical Society, Part 4The Society., 1949 |
From inside the book
Results 1-3 of 75
Page 2560
... precipitate was collected and washed , redissolved in boiling 2N - hydro- chloric acid , and poured into excess of sodium hydroxide solution . The base was filtered off , washed well , redissolved in hot 2N - hydrochloric acid , and ...
... precipitate was collected and washed , redissolved in boiling 2N - hydro- chloric acid , and poured into excess of sodium hydroxide solution . The base was filtered off , washed well , redissolved in hot 2N - hydrochloric acid , and ...
Page 2715
... precipitate extracted by means of benzene . The benzene extracts were washed with water , dried ( Na , ŠO , ) , concentrated , and then chromatographed on alumina . The main fraction was weakly adsorbed and easily eluted by means of ...
... precipitate extracted by means of benzene . The benzene extracts were washed with water , dried ( Na , ŠO , ) , concentrated , and then chromatographed on alumina . The main fraction was weakly adsorbed and easily eluted by means of ...
Page 3297
... precipitate is first obtained , which later becomes brown ; then a weak violet colour appears in the solution when about 4 molecular proportions of cyanide have been added . The precipitate as well as the violet colour disappear on a ...
... precipitate is first obtained , which later becomes brown ; then a weak violet colour appears in the solution when about 4 molecular proportions of cyanide have been added . The precipitate as well as the violet colour disappear on a ...
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Common terms and phrases
absorption acetic acid acetic anhydride acetone added alcohol alkaline aluminium chloride aluminium iodide Amer amine ammonia aqueous sodium atom benzaldehyde benzene boiling bond bromide bromine trifluoride Calc carbon CH₂ Chem chloroform colourless needles compound concentrated condensation containing cooled crystallised crystals D.Sc decomp decomposition derivatives diazotised dilute dioxan dissolved distilled dried ester ethanol ethyl alcohol extracted with ether filtered filtrate formation formed Found fraction gave Grignard reagent halide heated under reflux hydrochloric acid hydrogen chloride hydrolysis iodide iodine ions isolated ketone light petroleum b. p. liquid method methyl methyl iodide minutes mixture molecule nitrate nitrogen obtained oxidation phenol picrate potassium precipitate prepared prisms pyridine reaction reagent recrystallised from ethanol reduced pressure removed requires residue room temperature salt separated sodium hydroxide solid soluble solution solvent sulphate sulphone sulphuric acid synthesis Table tube values washed yield