Journal of the Chemical Society, Part 1Chemical Society., 1949 |
From inside the book
Results 1-3 of 81
Page 4
... removed in the centrifuge , and an amylose fraction was precipitated from the supernatant liquid with alcohol ( 2 vols . ) . The amylose fraction ( A ) was purified by dialysis against running water for 2 days , re- precipitated with ...
... removed in the centrifuge , and an amylose fraction was precipitated from the supernatant liquid with alcohol ( 2 vols . ) . The amylose fraction ( A ) was purified by dialysis against running water for 2 days , re- precipitated with ...
Page 265
... removed and the filtrate basified with saturated aqueous sodium carbonate . The oil which separated crystallised on keeping for 48 hours in the ice chest ; this , on recrystallisation from boiling acetone ( 50 c.c. ) , gave a further ...
... removed and the filtrate basified with saturated aqueous sodium carbonate . The oil which separated crystallised on keeping for 48 hours in the ice chest ; this , on recrystallisation from boiling acetone ( 50 c.c. ) , gave a further ...
Page 617
... removed by repeated washings with water . After the solution had been washed with sodium hydroxide solution and water , and then dried , the ether was removed ; the residue completely solidified . One crystallisation from ether - light ...
... removed by repeated washings with water . After the solution had been washed with sodium hydroxide solution and water , and then dried , the ether was removed ; the residue completely solidified . One crystallisation from ether - light ...
Other editions - View all
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 CHâ‚‚ 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