 | American Academy of Arts and Sciences - 1862 - 488 Seiten
...sulphide of copper, lead, and gold collected upon a filter, treated with nitric acid, the acid solution evaporated to dryness, the residue taken up with water, and the solution filtered ; in the filtrate lead was detected, while the residue contained gold. With regard to this... | |
 | American Academy of Arts and Sciences - 1862 - 474 Seiten
...sulphide of copper, lead, and gold collected upon a filter, treated with nitric acid, the acid solution evaporated to dryness, the residue taken up with water, and the solution filtered ; in the filtrate lead was detected, while the residue contained gold. With regard to this... | |
 | 1861 - 410 Seiten
...sulphide of copper, lead, and gold collected upon a filter, treated with nitric acid, the acid solution, evaporated to dryness, the residue taken up with water, and the solution filtered ; "in the filtrate lend was detected, while the residue contained gold. With regard to this... | |
 | 1877 - 752 Seiten
...precipitate weighed with the former. The last weight is regarded as the more accurate. The filtrate is] evaporated to dryness, the residue taken up with water, and the solution boiled with addition of pure milk of lime. The filtrate is precipitated- with ammonium carbonate and... | |
 | J. H. Tucker - 1881 - 396 Seiten
...To prove whether these acids are present or not, a portion of * Dasoptische DrthunywermBgen, p. 185. the alcoholic solution is evaporated to dryness, the...are present, and a correction for them must be made. n. BY FEHLING'S METHOD. The Qualitative Test.—" Fifteen or twenty drops of the urine to be tested,... | |
 | Alfred Henry Allen - 1886 - 548 Seiten
...otherwise exercise a solvent action on cuprous thiocyanate, are left undissolved. The alcoholic filtrate is evaporated to dryness, the residue taken up with water, and the insoluble organic matter filtered off. A solution of ammonium thiocyanate is thus obtained tolerably... | |
 | Henry Leffmann, William Beam - 1889 - 136 Seiten
...dryness. The residue is boiled with a little alcohol, which will dissolve out the lithium chloride. The alcoholic solution is evaporated to dryness, the residue taken up with a little water and tested in the flame. In order to identify with certainty any line which may be obtained,... | |
 | Henry Leffmann - 1899 - 178 Seiten
...The residue is boiled with a little alcohol, which will dissolve out the FIG. 10. lithium clilorid. The alcoholic solution is evaporated to dryness, the residue taken up with a little water and tested in the flame. In order to identify with certainty any line which may be obtained,... | |
 | Georg Andreas Karl Staedeler - 1901 - 118 Seiten
...water and precipitating by calcium sulphate solution. The alcoholic filtrate containing the calcium is evaporated to dryness, the residue taken up with water and the calcium precipitated by ammonium oxalate. Separation b) Barium, strontium and calcium can also be separated... | |
 | Alfred Henry Allen - 1913 - 618 Seiten
...otherwise exercise a solvent action on cuprous thiosulphate, are left undissolved. The alcoholic filtrate is evaporated to dryness, the residue taken up with water, and the insoluble organic matter filtered off. A solution of ammonium thiocyanate is thus obtained tolerably... | |
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... acid, and the chloride of silver collected upon a filter and washed. Through the filtrate sulphuretted hydrogen was passed, the mixed sulphide of copper, lead, and gold collected upon a filter, treated with nitric acid, the acid solution evaporated... 
