Chemical News and Journal of Physical Science, Tom 104Chemical news office., 1911 |
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Strona 24
... SAMPLES and PRICES . MANUFACTURED BY BERNHARD & SCHENK , Siegburg . SOLE AGENTS - C . MARTIN & CO . , 134 , DEANSGATE , MANCHESTER , UNIVERSITY OF BIRMINGHAM . Faculties.- SCIENCE , ARTS , MEDICINE , COMMERCE . SPECIAL SCHOOLS OF ...
... SAMPLES and PRICES . MANUFACTURED BY BERNHARD & SCHENK , Siegburg . SOLE AGENTS - C . MARTIN & CO . , 134 , DEANSGATE , MANCHESTER , UNIVERSITY OF BIRMINGHAM . Faculties.- SCIENCE , ARTS , MEDICINE , COMMERCE . SPECIAL SCHOOLS OF ...
Strona 46
... sample , diluted it to 200 cc . , and tested 20 cc . of it for acidity , using phenolphthalein as an indicator . I found it took 2 drops of N / 2 sodium hydroxide to neutralise the 20 CC . I added 2 drops to each 20 cc . I used for ...
... sample , diluted it to 200 cc . , and tested 20 cc . of it for acidity , using phenolphthalein as an indicator . I found it took 2 drops of N / 2 sodium hydroxide to neutralise the 20 CC . I added 2 drops to each 20 cc . I used for ...
Strona 54
... sample of magnesite , heated for five hours at 400 ° C. , until no carbonate remained , did not set on hydration . Pure MgO did not set when similarly treated . Working on the formula 100 ( SiO2 . R2O3 ) 304 . ( CaOMgO ) , the experi ...
... sample of magnesite , heated for five hours at 400 ° C. , until no carbonate remained , did not set on hydration . Pure MgO did not set when similarly treated . Working on the formula 100 ( SiO2 . R2O3 ) 304 . ( CaOMgO ) , the experi ...
Strona 65
... sample of silver used in this investigation was purified by methods which have been thoroughly tested in this laboratory ( see especially Richards and Wells , Pub . Car . Inst . , 1905 , xxviii . , 16 ; Journ . Am . Chem . Soc . , xxvii ...
... sample of silver used in this investigation was purified by methods which have been thoroughly tested in this laboratory ( see especially Richards and Wells , Pub . Car . Inst . , 1905 , xxviii . , 16 ; Journ . Am . Chem . Soc . , xxvii ...
Strona 66
... sample B. Sample C , of ferrous bromide was made from Sample C of iron in the same way and was crystallised five times from hydrobromic acid . Sample C2 was obtained from the mother - liquors of Sample Cr , after evaporation and ...
... sample B. Sample C , of ferrous bromide was made from Sample C of iron in the same way and was crystallised five times from hydrobromic acid . Sample C2 was obtained from the mother - liquors of Sample Cr , after evaporation and ...
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