Journal of the Chemical Society, Part 1Chemical Society., 1949 |
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Page 200
... carbon atoms . The angle 0 is readily given by cos = -- ( 2 sin ẞ / 2 — sin α / 2 ) 31/2 cos α / 2 a being the valency angle of the atom X and ẞ that of carbon . A selection of our calculations , relating to a and ẞ values around 110 ...
... carbon atoms . The angle 0 is readily given by cos = -- ( 2 sin ẞ / 2 — sin α / 2 ) 31/2 cos α / 2 a being the valency angle of the atom X and ẞ that of carbon . A selection of our calculations , relating to a and ẞ values around 110 ...
Page 722
... carbon dioxide condensed in the trap V1 , vaporised by replacing the liquid - air trap with a carbon dioxide - acetone bath at -80 ° . About 5 minutes are necessary for the distillation of the carbon dioxide , and if towards the end of ...
... carbon dioxide condensed in the trap V1 , vaporised by replacing the liquid - air trap with a carbon dioxide - acetone bath at -80 ° . About 5 minutes are necessary for the distillation of the carbon dioxide , and if towards the end of ...
Page 723
... carbon dioxide condenses on the wall , with type ( c ) the rapid chilling produces a mist of carbon dioxide particles , some of which are carried away too quickly by the gas flow . When using a single trap of type ( a ) with a pumping ...
... carbon dioxide condenses on the wall , with type ( c ) the rapid chilling produces a mist of carbon dioxide particles , some of which are carried away too quickly by the gas flow . When using a single trap of type ( a ) with a pumping ...
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Common terms and phrases
absorption 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 concentration condensation cooled crystallised crystals curve cyanide 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 removed requires residue room temperature salt separated sodium hydroxide solid soluble solution solvent stirred structure sulphate sulphide sulphone sulphuric acid thionyl chloride washed yellow yield