The Elements of Chemistry; a Textbook for Beginners
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In our eReader you can find the full English version of the book. Read The Elements of Chemistry; a Textbook for Beginners 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 The Elements of Chemistry; a Textbook for Beginners
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— It is used in making sulphuric acid [how?], and nitric acid [how?]. Its chief use is in the manufacture of gunpowder.
Gunpowder. — The value of gunpowder is due to the fact that it explodes readily, the explosion being a chemical change accompanied by a sudden evolution of gases. When the powder is enclosed in a gun-barrel the gases in escaping - drive the ball before them. Gunpowder has long been known, and has always been made of saltpetre, charcoal, and sulpJmr. When heated the saltpetre g...ives off oxygen and nitrogen; the oxygen combines with the charcoal, forming carbon dioxide, and the sulphur combines with the potas- sium, forming potassium sulphide. The reactions are represented in this equation: _ 2KNO3 -f 30 + S = SCO, + 2N + K,S.
Gas. Gas. Solid.
ExPEKiMENT 107. — Mix together 15 grams potassium nitrate and 3.5 grams powdered charcoal. Set fire to the mass.
J THE POTASSIUM FAMILY. 169 Potassium Chlorate, KCIO,, has so frequently been re- ferred to and used in earlier experiments that it is not necessary to say anything more about it now: [Describe the method of preparation and decomposition by heat.
What to read after The Elements of Chemistry; a Textbook for Beginners?
You can find similar books in the "Read Also" column, or choose other free books by Ira Remsen to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
— It is used in making sulphuric acid [how?], and nitric acid [how?]. Its chief use is in the manufacture of gunpowder.
Gunpowder. — The value of gunpowder is due to the fact that it explodes readily, the explosion being a chemical change accompanied by a sudden evolution of gases. When the powder is enclosed in a gun-barrel the gases in escaping - drive the ball before them. Gunpowder has long been known, and has always been made of saltpetre, charcoal, and sulpJmr. When heated the saltpetre g...ives off oxygen and nitrogen; the oxygen combines with the charcoal, forming carbon dioxide, and the sulphur combines with the potas- sium, forming potassium sulphide. The reactions are represented in this equation: _ 2KNO3 -f 30 + S = SCO, + 2N + K,S.
Gas. Gas. Solid.
ExPEKiMENT 107. — Mix together 15 grams potassium nitrate and 3.5 grams powdered charcoal. Set fire to the mass.
J THE POTASSIUM FAMILY. 169 Potassium Chlorate, KCIO,, has so frequently been re- ferred to and used in earlier experiments that it is not necessary to say anything more about it now: [Describe the method of preparation and decomposition by heat.
What to read after The Elements of Chemistry; a Textbook for Beginners?
You can find similar books in the "Read Also" column, or choose other free books by Ira Remsen to read onlineMoreLess
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