Chemical News and Journal of Industrial Science, Tom 145,Wydanie 3780Chemical news office., 1932 |
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Strona 178
... stand 15 minutes with . frequent shaking . A precipitate indicates the presence of the alkaline earth metals . Filter and wash the precipitate with ammonium carbonate solution . Test the filtrate for complete precipitation . 2. Residue ...
... stand 15 minutes with . frequent shaking . A precipitate indicates the presence of the alkaline earth metals . Filter and wash the precipitate with ammonium carbonate solution . Test the filtrate for complete precipitation . 2. Residue ...
Strona 179
... stand 10 or 15 minutes . 2. THE SEPARATION OF MAGNES- IUM FROM THE ALKALI METALS BY ACETONE AND AMMONIUM CARBONATE . When magnesium is separated from barium , strontium , and calcium in the usual manner , the separation of magnes- ium ...
... stand 10 or 15 minutes . 2. THE SEPARATION OF MAGNES- IUM FROM THE ALKALI METALS BY ACETONE AND AMMONIUM CARBONATE . When magnesium is separated from barium , strontium , and calcium in the usual manner , the separation of magnes- ium ...
Strona 183
... stand for one half hour with frequent stirring . 3. Residue from 1. This contains the carbonates of calcium , calcium , barium and strontium . Dissolve in dilute nitric acid . ( 1-10 ) . Use only enough to convert carbonates to nitrates ...
... stand for one half hour with frequent stirring . 3. Residue from 1. This contains the carbonates of calcium , calcium , barium and strontium . Dissolve in dilute nitric acid . ( 1-10 ) . Use only enough to convert carbonates to nitrates ...
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94 per cent acetic acetone acid added addition agent alcohol ammonium carbonate ammonium hydroxide atom barium and strontium barium nitrates basic calcium and strontium calcium nitrate calories Chem Chemical Chemistry chloride Clinic collinsics combination concentrations containing copper corrosion course Crystalline precipitate desired determine dilute dissolved drops effect elements estimated evaporated experimental filter filtrate forms given gives green Heat Heavy pp't Heavy precipitate indicates Industrial interest London magnesium metals method minutes mixture Molecules nature nitrates of barium Number obtained oxalate oxygen p-bromobenzoate p-toluate p-toluic acid passing Patents per-rhenate points possible potassium potassium chromate precipitate shows prepared presence procedure production Reactions relative Research residue salts Sample solutions saturated separation September sodium solid soluble solvents stand stirring structure substances suitable sulphur Table temperature Test tion Trade Marks treated treatment various volume workers