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Nitrogen and ammonia.
In: Salem Press Encyclopedia of Science, 2023, S. 3
Online
Nachschlagewerk
Zugriff:
Nitrogen gas (N2) constitutes 78 percent of the Earth’s atmosphere. There are deposits of potassium nitrate in India and of sodium nitrate in Chile, but nitrogen ranks only thirty-third among the elements in crustal abundance, with an average concentration of 0.03 percent by weight. Natural gas, petroleum, and coal contain nitrogen, and all plants and animals contain nitrogen in the form of proteins. The human body is about 3 percent nitrogen by weight.
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Nitrogen and ammonia.
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Autor/in / Beteiligte Person: | Phillips, John R. |
Zeitschrift: | Salem Press Encyclopedia of Science, 2023, S. 3 |
Veröffentlichung: | 2023 |
Medientyp: | Nachschlagewerk |
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