Chemical News and Journal of Industrial Science, Tomy 99-100Chemical news office., 1909 |
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Strona 1
... dilute sulphuric acid mixed with sulphurous acid , the whole acids were precipitated from the alkaline solution with boiled , and the acids filtered , washed , and then strongly ignited , with addition of ammonium carbonate , to a ...
... dilute sulphuric acid mixed with sulphurous acid , the whole acids were precipitated from the alkaline solution with boiled , and the acids filtered , washed , and then strongly ignited , with addition of ammonium carbonate , to a ...
Strona 3
... dilute sulphuric acid always contain basic matters , and especially iron and zirconia ; even a second fusion in many cases by no means removes all these im- purities . One must not be misled by the white appearance of the acids ; they ...
... dilute sulphuric acid always contain basic matters , and especially iron and zirconia ; even a second fusion in many cases by no means removes all these im- purities . One must not be misled by the white appearance of the acids ; they ...
Strona 7
... dilute freely , through the condenser , with cold water , acidify with nitric acid , add a moderate excess of silver nitrate , and on complete cooling determine the excess of silver titrimetrically by Volhard's method . If the halogen ...
... dilute freely , through the condenser , with cold water , acidify with nitric acid , add a moderate excess of silver nitrate , and on complete cooling determine the excess of silver titrimetrically by Volhard's method . If the halogen ...
Strona 8
... dilute sulphuric acid and again ignited , gently at first and finally at the full heat of the Bunsen flame , to remove the last trace of ammonium present as the sulphate , and to destroy any organic matter which night be present . The ...
... dilute sulphuric acid and again ignited , gently at first and finally at the full heat of the Bunsen flame , to remove the last trace of ammonium present as the sulphate , and to destroy any organic matter which night be present . The ...
Strona 9
... dilute alkaline solutions . It is only when the hydroxyl ions supplied by an alkaline solu- tion have reached a certain concentration that rusting is entirely prohibited . The carbonic acid theory was founded originally on the ...
... dilute alkaline solutions . It is only when the hydroxyl ions supplied by an alkaline solu- tion have reached a certain concentration that rusting is entirely prohibited . The carbonic acid theory was founded originally on the ...
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