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Page 2538
... sample of the natural mineral was taken for comparison , and showed about 40 lines , in good agreement with previously recorded data ( Clark and Bunn , J. Soc . Chem . Ind . , 1940 , 59 , 155 ; McMurdie and Flint , J. Res . Nat . Bur ...
... sample of the natural mineral was taken for comparison , and showed about 40 lines , in good agreement with previously recorded data ( Clark and Bunn , J. Soc . Chem . Ind . , 1940 , 59 , 155 ; McMurdie and Flint , J. Res . Nat . Bur ...
Page 3161
... sample ; otherwise the oxides were spectrographically pure . Expt . 3. Apart from tungsten in the extracted niobium , the oxides were spectrographically pure . The last 200 ml . of the intermediate solvent contained 2.0 mg . of oxides ...
... sample ; otherwise the oxides were spectrographically pure . Expt . 3. Apart from tungsten in the extracted niobium , the oxides were spectrographically pure . The last 200 ml . of the intermediate solvent contained 2.0 mg . of oxides ...
Page 3162
... sample wad gently beaten with the plunger , and the extraction continued in the manner described above until 400 ml . of solvent B had been used . Depending on the type of sample under analysis , the last 200 ml . of solvent B could ...
... sample wad gently beaten with the plunger , and the extraction continued in the manner described above until 400 ml . of solvent B had been used . Depending on the type of sample under analysis , the last 200 ml . of solvent B could ...
Contents
ONE HUNDRED AND ELEVENTH ANNUAL GENERAL MEETING | 2449 |
483 | 2465 |
Mechanism of Substitution at a Saturated Carbon Atom Part XXXIII Kinetic | 2488 |
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acetic acid acetone acetyl acetyl chloride added alcohol alum aluminium aluminium bromide Amer ammonia anhydride aqueous atom benzene benzyl boiling Calc carbon Chem Chemical Chemistry chloroform chromatography colourless compound concentrated condensation cooled crystallised crystals decomp derivative dilute dissolved distilled dried ester ethanol ether ethyl acetate ethylene evaporated excess extracted filtered filtrate formed Found fraction gave give heated hydrate hydrochloric acid hydrogen bromide hydrogen chloride hydrolysis iodide isolated ketone L-iditol Lecture light petroleum b. p. lignin lithium aluminium hydride m. p. and mixed material method methyl mixed m. p. mixture molecular molecules needles nitrate obtained oxide phase phosphate polymer potassium hydroxide precipitated prepared present Professor pyridine reaction reflux requires residue retinene room temperature salt sample separated sodium hydroxide solid solution solvent stirred structure Table trifluoroiodomethane vapour pressure vitamin washed yellow yield