Chemical News and Journal of Industrial Science, Tomy 111-112Chemical news office., 1915 |
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Strona 2
... organic matter . The method consists in decom- posing the peroxide by hydrochloric acid in the presence of potassium iodide , using chloroform or carbon tetrachloride as an indicator , and titrating back the excess of potassium iodide ...
... organic matter . The method consists in decom- posing the peroxide by hydrochloric acid in the presence of potassium iodide , using chloroform or carbon tetrachloride as an indicator , and titrating back the excess of potassium iodide ...
Strona 12
... organic solvents : - 0'1117 gave 12.70 cc . N2 at N.T.P .; N = 13'97 ; C25H23O7N5 requires N = 13.86 per cent . The solutions of the above compounds were examined at 25 ° . The rotatory powers were measured in 2 - dcm . tubes , the ...
... organic solvents : - 0'1117 gave 12.70 cc . N2 at N.T.P .; N = 13'97 ; C25H23O7N5 requires N = 13.86 per cent . The solutions of the above compounds were examined at 25 ° . The rotatory powers were measured in 2 - dcm . tubes , the ...
Strona 28
... organic preparations which contain no metal at all ( and not any metal - like radicle ) acquire marked after - colours of the first class in the cathode rays also . ( The part of the discharge- tube which contains the organic substances ...
... organic preparations which contain no metal at all ( and not any metal - like radicle ) acquire marked after - colours of the first class in the cathode rays also . ( The part of the discharge- tube which contains the organic substances ...
Strona 45
... organic compounds . The book contains broadening of any of the lines was observed , but it would no superfluous matter whatever , and the directions are not have been possible to see a very slight effect of this always clear and concise ...
... organic compounds . The book contains broadening of any of the lines was observed , but it would no superfluous matter whatever , and the directions are not have been possible to see a very slight effect of this always clear and concise ...
Strona 49
... organic matter so quickly decays in the soil . We expected to find a much higher percentage of iron in both samples by which to explain the rapid dis- appearance . Doubtless the iron present is an importan By NICHOLAS KNIGHT , Cornell ...
... organic matter so quickly decays in the soil . We expected to find a much higher percentage of iron in both samples by which to explain the rapid dis- appearance . Doubtless the iron present is an importan By NICHOLAS KNIGHT , Cornell ...
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