Minerals And Rocks the Elements of Mineralogy And Lithology for the Use of Stud
Minerals And Rocks the Elements of Mineralogy And Lithology for the Use of Stud
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In our eReader you can find the full English version of the book. Read Minerals And Rocks the Elements of Mineralogy And Lithology for the Use of Stud 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 Minerals And Rocks the Elements of Mineralogy And Lithology for the Use of Stud
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The substance flies to pieces when heat is applied, indicating decomposition or the pres- ence of water, or included gases.
Deflagration. The substance suddenly burns with little explosions characteristic of nitrates.
Reduction and Sublimation. When heated on char- coal with the R. F. , some substances may easily be reduced to the metallic state, others are reduced with difficulty. Thus, 2PbO+C = Pb 2 +C0 2 . Reduc- tion takes place most readily if the assay is powdered and mixed with about fou...r times its volume of dry sodium carbonate (Na 2 C03) . Thus : 2PbS+2Na 2 C0 3 +C = 2Na 2 S+Pb 2 +3CO 2 .
In cases of great difficulty, a little potassium cyanide l (KCN) or borax (Na 2 B 4 07-10H 2 0) added to the mixture will frequently hasten the result. In any case, the heat must be applied until nearly all the assay sinks into the charcoal.
When sufficiently heated, some substances yield a globule of metal, others are completely volatilized, others yield fumes, produced by the oxidation of portions of the assay, while yet others are partly re- duced to a globule of metal and partly volatilized.
What to read after Minerals And Rocks the Elements of Mineralogy And Lithology for the Use of Stud?
You can find similar books in the "Read Also" column, or choose other free books by William Shirley Bayley to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
The substance flies to pieces when heat is applied, indicating decomposition or the pres- ence of water, or included gases.
Deflagration. The substance suddenly burns with little explosions characteristic of nitrates.
Reduction and Sublimation. When heated on char- coal with the R. F. , some substances may easily be reduced to the metallic state, others are reduced with difficulty. Thus, 2PbO+C = Pb 2 +C0 2 . Reduc- tion takes place most readily if the assay is powdered and mixed with about fou...r times its volume of dry sodium carbonate (Na 2 C03) . Thus : 2PbS+2Na 2 C0 3 +C = 2Na 2 S+Pb 2 +3CO 2 .
In cases of great difficulty, a little potassium cyanide l (KCN) or borax (Na 2 B 4 07-10H 2 0) added to the mixture will frequently hasten the result. In any case, the heat must be applied until nearly all the assay sinks into the charcoal.
When sufficiently heated, some substances yield a globule of metal, others are completely volatilized, others yield fumes, produced by the oxidation of portions of the assay, while yet others are partly re- duced to a globule of metal and partly volatilized.
What to read after Minerals And Rocks the Elements of Mineralogy And Lithology for the Use of Stud?
You can find similar books in the "Read Also" column, or choose other free books by William Shirley Bayley to read onlineMoreLess
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