Electrolytic Preparations. Exercises for Use in the Laboratory By Chemists And Electro-Chemists
Electrolytic Preparations. Exercises for Use in the Laboratory By Chemists And Electro-Chemists
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In our eReader you can find the full English version of the book. Read Electrolytic Preparations. Exercises for Use in the Laboratory By Chemists And Electro-Chemists Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book Electrolytic Preparations. Exercises for Use in the Laboratory By Chemists And Electro-Chemists
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To quickly assess the difficulty of the text, read a short excerpt:
They are first polished with wet sand, then electrolytically oxidized in 20 per cent, sulphuric acid (accumulator acid) with a current density of % amperes per 100 sq. cms.
during half an hour, afterwards rinsed in cold water, im- mersed in boiling water for some minutes, washed with boiling alcohol, and dried quickly in a current of air. In this condition the cathodes can be preserved unaltered.
With the exception of the polishing with sand this treat- ment is advantageously repeated after eac...h experiment.
The same treatment is suitable once even for the anodes, but does not need to be repeated ; it is sufficient from time to time, after using, to soak them in water, wash them over, and quickly dry them. Foreign metals can easily be intro- duced by means of the porous pot ; the new cells are there- fore digested first with dilute caustic soda, then with water, and afterwards with hydrochloric acid of i*oa to 1-03 sp. gr., each time for one to two days, and finally with water for a whole week.
What to read after Electrolytic Preparations. Exercises for Use in the Laboratory By Chemists And Electro-Chemists?
You can find similar books in the "Read Also" column, or choose other free books by Karl Elbs to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
They are first polished with wet sand, then electrolytically oxidized in 20 per cent, sulphuric acid (accumulator acid) with a current density of % amperes per 100 sq. cms.
during half an hour, afterwards rinsed in cold water, im- mersed in boiling water for some minutes, washed with boiling alcohol, and dried quickly in a current of air. In this condition the cathodes can be preserved unaltered.
With the exception of the polishing with sand this treat- ment is advantageously repeated after eac...h experiment.
The same treatment is suitable once even for the anodes, but does not need to be repeated ; it is sufficient from time to time, after using, to soak them in water, wash them over, and quickly dry them. Foreign metals can easily be intro- duced by means of the porous pot ; the new cells are there- fore digested first with dilute caustic soda, then with water, and afterwards with hydrochloric acid of i*oa to 1-03 sp. gr., each time for one to two days, and finally with water for a whole week.
What to read after Electrolytic Preparations. Exercises for Use in the Laboratory By Chemists And Electro-Chemists?
You can find similar books in the "Read Also" column, or choose other free books by Karl Elbs to read onlineMoreLess
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