Quantitative Analysis By Electrolysis
Quantitative Analysis By Electrolysis
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, and by adding a salt of the same acid to the electrolyte bath. In this way the deposition of zinc can be made quantitative.
(a) The solution contains sodium acetate and acetic acid. The electrolysis of zinc solutions containing these substances was recommended by Riche, Parodi and Mascazzini, as well as by Rudorff and has been tested by F. Spitzer. * By using a gauze, electrode, good deposits are obtained with a current strength of 0. 5 ampere if the solution containing about 0. 16 gm. Of zin...c in 100 cc. Is treated with a solution of 5 gms. Sodium acetate and acidified with 0. 3, or 0. 5 cc. At the most, of glacial acetic acid. The analysis is carried out at the ordinary temperature and re- quires from 2 to 2. 5 hours.
Too high a current density or too much acetic acid causes an uneven deposit; a branching, crystalline growth is obtained which easily falls off the electrode. To make sure that the acidity of the solution is not too great, any free acid originally present in the solution is neutralized by the cautious addition of caustic-soda solution, before adding the sodium acetate.
What to read after Quantitative Analysis By Electrolysis?
You can find similar books in the "Read Also" column, or choose other free books by Alexander Classen to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
, and by adding a salt of the same acid to the electrolyte bath. In this way the deposition of zinc can be made quantitative.
(a) The solution contains sodium acetate and acetic acid. The electrolysis of zinc solutions containing these substances was recommended by Riche, Parodi and Mascazzini, as well as by Rudorff and has been tested by F. Spitzer. * By using a gauze, electrode, good deposits are obtained with a current strength of 0. 5 ampere if the solution containing about 0. 16 gm. Of zin...c in 100 cc. Is treated with a solution of 5 gms. Sodium acetate and acidified with 0. 3, or 0. 5 cc. At the most, of glacial acetic acid. The analysis is carried out at the ordinary temperature and re- quires from 2 to 2. 5 hours.
Too high a current density or too much acetic acid causes an uneven deposit; a branching, crystalline growth is obtained which easily falls off the electrode. To make sure that the acidity of the solution is not too great, any free acid originally present in the solution is neutralized by the cautious addition of caustic-soda solution, before adding the sodium acetate.
What to read after Quantitative Analysis By Electrolysis?
You can find similar books in the "Read Also" column, or choose other free books by Alexander Classen to read onlineMoreLess
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