Journal of the Chemical Society, Part 4The Society., 1949 |
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Page 3248
... phenol at a constant total dose of approx . 1 x101 r . Millimoles of phenol x 10 2 4 6 8 10 12 14 Millimoles of phenol x 102 . PH . Influence of the pH on the yield of phenol for a constant time of irradiation ( = 5 min ...
... phenol at a constant total dose of approx . 1 x101 r . Millimoles of phenol x 10 2 4 6 8 10 12 14 Millimoles of phenol x 102 . PH . Influence of the pH on the yield of phenol for a constant time of irradiation ( = 5 min ...
Page 3251
... phenol increases by the unexpectedly high factor of five . This indicates that the low yield of phenol in a vacuum is caused by the fact that its formation is not the first step of the reaction . In a vacuum the concentration of ...
... phenol increases by the unexpectedly high factor of five . This indicates that the low yield of phenol in a vacuum is caused by the fact that its formation is not the first step of the reaction . In a vacuum the concentration of ...
Page 3303
... phenol - formaldehyde . Phenol - p - sulphonic acid ( 1 mol . ) , prepared by heating phenol ( 1 mol . ) with concentrated sulphuric acid ( 1 · 2 mols . ) at 100 ° for 2 hours , was treated with formaldehyde ( 2 mols . ) ( B.P. 489,437 ) ...
... phenol - formaldehyde . Phenol - p - sulphonic acid ( 1 mol . ) , prepared by heating phenol ( 1 mol . ) with concentrated sulphuric acid ( 1 · 2 mols . ) at 100 ° for 2 hours , was treated with formaldehyde ( 2 mols . ) ( B.P. 489,437 ) ...
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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