Chemical News and Journal of Physical Science, Tom 105Chemical news office., 1912 |
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Strona 1
... prepared Hitherto the boron in a solid state and chemically pure . physical properties of this element were unknown , not- withstanding the efforts of many chemists who had worked on the subject . Moissan , who came nearest to obtaining ...
... prepared Hitherto the boron in a solid state and chemically pure . physical properties of this element were unknown , not- withstanding the efforts of many chemists who had worked on the subject . Moissan , who came nearest to obtaining ...
Strona 9
... prepared and re - crystallised several times , but no ester could be obtained which ex- hibited any trace of optical activity . 322. " An Experimental Investigation of the Bleaching Process . " By SYDNEY Herbert HIGGINS . Solutions of ...
... prepared and re - crystallised several times , but no ester could be obtained which ex- hibited any trace of optical activity . 322. " An Experimental Investigation of the Bleaching Process . " By SYDNEY Herbert HIGGINS . Solutions of ...
Strona 17
... prepared , remained unchanged on mixing with the acid from the soil , and this fact , together with the composition ... preparation does not suggest any possible parallelism in the soil as was the case when the origin of dihydroxystearic ...
... prepared , remained unchanged on mixing with the acid from the soil , and this fact , together with the composition ... preparation does not suggest any possible parallelism in the soil as was the case when the origin of dihydroxystearic ...
Strona 26
... prepared from American turpentine , Russian turpentine , and sylvestrene prepared from Russian turpentine , were respectively mixed with their own volume of water and oxidised by a current of air at 65 ° C. for twenty - four hours . The ...
... prepared from American turpentine , Russian turpentine , and sylvestrene prepared from Russian turpentine , were respectively mixed with their own volume of water and oxidised by a current of air at 65 ° C. for twenty - four hours . The ...
Strona 42
... prepared from such material . In the case of the Marshall loam such a crude pentosan was obtained , and was prob- ably present as such in the soil as a plant residue . In the case of soil organic matter in general , however , it can not ...
... prepared from such material . In the case of the Marshall loam such a crude pentosan was obtained , and was prob- ably present as such in the soil as a plant residue . In the case of soil organic matter in general , however , it can not ...
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