Journal of the Chemical Society, Part 5Chemical Society., 1949 "Titles of chemical papers in British and foreign journals" included in Quarterly journal, v. 1-12. |
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Results 1-3 of 65
Page 27
... fraction is viscous ( b . p . 40 ° / 15 mm . ) and contains ~ 84 % of tetrahydrofurfuraldehyde ; it is a hydrate of the aldehyde . Next , a mobile fraction ( b . p . 43 ° / 15 mm . ) containing 98.6 % of tetrahydrofurfuraldehyde distils ...
... fraction is viscous ( b . p . 40 ° / 15 mm . ) and contains ~ 84 % of tetrahydrofurfuraldehyde ; it is a hydrate of the aldehyde . Next , a mobile fraction ( b . p . 43 ° / 15 mm . ) containing 98.6 % of tetrahydrofurfuraldehyde distils ...
Page 102
... fraction ( 20 g .; b . p . 163 ° / 15 mm .; m . p . 9.0 ° and mixed m . p . 9.5 ° with pure a - naphthyl methyl ketone ) which was almost pure a - naphthyl methyl ketone . Picrate analysis indicated 97.5 % of a - ketone . ( 2 ) A ...
... fraction ( 20 g .; b . p . 163 ° / 15 mm .; m . p . 9.0 ° and mixed m . p . 9.5 ° with pure a - naphthyl methyl ketone ) which was almost pure a - naphthyl methyl ketone . Picrate analysis indicated 97.5 % of a - ketone . ( 2 ) A ...
Page 274
... fraction " ( ER ) and the " diffusion fraction " ( ED ) ; i.e. , e = € R + € D⋅ For all quantitative evaluations it is necessary to determine ER and ЄD separately . This can be done , e.g. , by measuring the emanation power e with two ...
... fraction " ( ER ) and the " diffusion fraction " ( ED ) ; i.e. , e = € R + € D⋅ For all quantitative evaluations it is necessary to determine ER and ЄD separately . This can be done , e.g. , by measuring the emanation power e with two ...
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absorption acetic acid acetone activity added alkali aluminium aluminium chloride Amer anhydride aqueous solution aspergillic atom benzene bromide Calc carbon Chem chemical chloroform coefficient colourless complex compounds concentration condensation containing cooled counter crystallised crystals curve decomp decomposition derivatives determined diffusion dilute dinitrogen tetroxide dioxide dissolved distilled dried electrons energy ester ethanol ether ethyl alcohol evaporated experimental experiments extracted filtered formation formed Found fraction gave give gliotoxin H₂O heated hydrochloric acid hydrogen hydrogen chloride hydrolysis iodide iodine value ionic isotopes ketone light petroleum b. p. liquid measured method mixture molecule needles nitrosyl chloride obtained oxidation perchlorate polonium potassium potassium hydroxide precipitated prepared protoactinium pyridine radioactive reaction refluxed requires residue room temperature salt sample separated sodium hydroxide solid soluble solvent sulphate sulphuric acid synthesis thorium thyroxine tube uranium uranyl nitrate washed yellow yield