Chemical News and Journal of Industrial Science, Tomy 99-100Chemical news office., 1909 |
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Strona 1
... potassium carbonate and borax ( Wol . laston ) . 3. Treating with hydrofluoric acid or fusing with potas- sium bifluoride ( W. Gibbs , Lawrence Smith , and Marignac ) . 4. Treating finely powdered minerals mixed with carbon with ...
... potassium carbonate and borax ( Wol . laston ) . 3. Treating with hydrofluoric acid or fusing with potas- sium bifluoride ( W. Gibbs , Lawrence Smith , and Marignac ) . 4. Treating finely powdered minerals mixed with carbon with ...
Strona 2
... potassium has some advantages ; its action is more powerful than that of aqueous hydro- fluoric acid . When used in conjunction with potassium bisulphate it will decompose many minerals which are hardly attacked at all by hydrofluoric ...
... potassium has some advantages ; its action is more powerful than that of aqueous hydro- fluoric acid . When used in conjunction with potassium bisulphate it will decompose many minerals which are hardly attacked at all by hydrofluoric ...
Strona 3
... potassium bisulphate generally recommended is inconvenient when the basic matters have to be estimated , and as the bisulphate invariably loses a good deal of its sulphuric acid during the heating , there is a tendency to form in some ...
... potassium bisulphate generally recommended is inconvenient when the basic matters have to be estimated , and as the bisulphate invariably loses a good deal of its sulphuric acid during the heating , there is a tendency to form in some ...
Strona 7
... potassium may be esti mated with a fair degree of accuracy by precipitating it as potassium sodium cobalti - nitrite in a solution acidified with acetic acid and oxidising the precipitate with standard potassium permanganate ( Am ...
... potassium may be esti mated with a fair degree of accuracy by precipitating it as potassium sodium cobalti - nitrite in a solution acidified with acetic acid and oxidising the precipitate with standard potassium permanganate ( Am ...
Strona 8
... potassium permanganate was used , 26'08 cc . of permanganate being equivalent to 50 cc . of exactly Nio oxalic acid . From this ratio the factor for K2O was found to be o'001642 . In each case the potassium was precipitated as the ...
... potassium permanganate was used , 26'08 cc . of permanganate being equivalent to 50 cc . of exactly Nio oxalic acid . From this ratio the factor for K2O was found to be o'001642 . In each case the potassium was precipitated as the ...
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