Journal of the Chemical SocietyThe Society., 1947 |
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Page 1227
... filtrate poured into methylated spirit ( 4 vols . ) . The precipitated polysaccharide was filtered off , washed with ... filtrate was concentrated under reduced pressure at 40 ° and poured into methyl alcohol ( 50 c.c. ) , and the ...
... filtrate poured into methylated spirit ( 4 vols . ) . The precipitated polysaccharide was filtered off , washed with ... filtrate was concentrated under reduced pressure at 40 ° and poured into methyl alcohol ( 50 c.c. ) , and the ...
Page 1236
... filtrate kept overnight at 0 ° . The crystals were separated by filtration , washed with a small amount of cold absolute alcohol , and dried in a desiccator ( 34 g . ) . The substance was recrystallised from 200 c.c. of hot absolute ...
... filtrate kept overnight at 0 ° . The crystals were separated by filtration , washed with a small amount of cold absolute alcohol , and dried in a desiccator ( 34 g . ) . The substance was recrystallised from 200 c.c. of hot absolute ...
Page 1376
... filtrate evaporated to incipient crystallisation ( vol . 250 c.c. ) ; on standing in the ice chest , B - benzamidothiopropionamide ( 30 g . ) separated in glittering colourless rhombs , m . p . 160-162 ° . A further quantity of less ...
... filtrate evaporated to incipient crystallisation ( vol . 250 c.c. ) ; on standing in the ice chest , B - benzamidothiopropionamide ( 30 g . ) separated in glittering colourless rhombs , m . p . 160-162 ° . A further quantity of less ...
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Common terms and phrases
absorption acetic acid acetone activity added alkali Amer amidine ammonia anhydride atoms band benzene boiling bromine Calc carbon carbon tetrachloride catalyst CH₂ Chem chemical chemistry chloroform compound concentrated condensation cooled crystallised crystals cyanide D.Sc decomp derivatives dilute dissolved distilled dried equiv ester evaporated experimental extracted with ether filtered filtrate formation formed Found fraction gave give H₂ heated hydrochloric acid hydrochloride hydrogen chloride hydrolysis iodide iodine isolated isotherm ketone l-arabinose lactone light petroleum b. p. liquid m. p. and mixed methanol method methyl alcohol mixed m. p. mixture molecular molecule nitration obtained oxide oxidised phenyl phosphoryl chloride picrate polymerisation potassium precipitated prepared Pu(IV pyridine reaction reduced pressure refluxed removed requires residue salt separated sodium hydroxide solid soluble solvent stirred structure sulphate sulphuric acid syrup vacuum vinyl acetate washed yellow yield