A Text book of Elementary Chemistry Theoretical And Inorganic
The book A Text book of Elementary Chemistry Theoretical And Inorganic was written by author George Frederick Barker Here you can read free online of A Text book of Elementary Chemistry Theoretical And Inorganic book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is A Text book of Elementary Chemistry Theoretical And Inorganic a good or bad book?
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Its spectrum is characterized by two green lines, readily seen in the flame of hydrogen which has been passed over phosphorus. PHOSPHORUS AND HYDROGEN. Three compounds of phosphorus and hydrogen are known : a gaseous compound H, P, a liquid one H 4 P 2, and a solid one, H 2 P 4 . HYDROGEN PHOSPHIDE OR PHOSPHINE. Formula H, P. Mo- lecular mass 33'96. Molecular volume 2. Relative density 16-98. The mass of one liter is 1'52 grams (17 frith*). 258. History. Hydrogen phosphide was discovered in 178...3 by Gengembre; but its analogy with ammonia was first established by Heinrich Rose in 1832. 204 INORGANIC CHEMISTRY. 259. Preparation. It may be prepared by the action of water or of acids upon phosphides : Ca 3 P, + (HC1) 6 = (CaCL 2 ) 3 + (H 3 P) 2 by the decomposition of so-called hypophosphorous acid : (H(P0 2 H, )) 2 = H 3 P0 4 + H S P and by boiling phosphorus with a solution of potassium hy- droxide : (HKO) 3 + P 4 + (H. O), - (K(P0 2 H 2 )) 3 + H. P 260. Properties. Phosphine is a colorless gas, with a nauseous garlic-like odor.
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