Chemical News and Journal of Industrial Science, Tomy 107-108Chemical news office., 1913 |
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Strona 1
... method of pre- cipitating the nitrosites from the rubber solution differed from Harries's method in so far as he generated nitrous acid anhydride from starch and 80 per cent nitric acid . The formula of the final product was given as ...
... method of pre- cipitating the nitrosites from the rubber solution differed from Harries's method in so far as he generated nitrous acid anhydride from starch and 80 per cent nitric acid . The formula of the final product was given as ...
Strona 2
... method is not of real value , at least not at the present time , for the estimation of actual caoutchouc in either raw or vulcanised rubber . For the determination of the vulcanisation confficient it may prove to be an excellent method ...
... method is not of real value , at least not at the present time , for the estimation of actual caoutchouc in either raw or vulcanised rubber . For the determination of the vulcanisation confficient it may prove to be an excellent method ...
Strona 37
... method of preparing hydro- fluoric acid , and to study anew its properties , in order to ascertain if possible whether the element could be isolated or not . He recognised the magnitude of his task , for he begins * : - " In such a work ...
... method of preparing hydro- fluoric acid , and to study anew its properties , in order to ascertain if possible whether the element could be isolated or not . He recognised the magnitude of his task , for he begins * : - " In such a work ...
Strona 53
... method . The impurities found in leading brands of the metal include , in varying quantity , antimony , arsenic , iron , lead , copper , sulphur , to mention only the more important and a glance at these will emphasise the economic ...
... method . The impurities found in leading brands of the metal include , in varying quantity , antimony , arsenic , iron , lead , copper , sulphur , to mention only the more important and a glance at these will emphasise the economic ...
Strona 56
... method ; ( 4 ) by the method of Archimedes ; ( 5 ) by means of the pyknometer . 1. The volumetric method , as its name implies , consists in determining by direct measurement the volume of a definite weight of material ; but , owing to ...
... method ; ( 4 ) by the method of Archimedes ; ( 5 ) by means of the pyknometer . 1. The volumetric method , as its name implies , consists in determining by direct measurement the volume of a definite weight of material ; but , owing to ...
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