Nitrogen fixation
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Nitrogen fixation is a chemical process by which the abundant but relatively inert molecular dinitrogen is converted into bioavailable nitrogen compounds such as ammonia and nitrates. It occurs both b
Nodules are visible on this broad bean root
A sectioned alder tree root nodule
Lightning heats the air around it in a high-temperature plasma, breaking the bonds of N 2, starting the formation of nitrous acid (HNO 2).
Equipment for a study of nitrogen fixation by alpha rays (Fixed Nitrogen Research Laboratory, 1926)
Ammonia
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Ammonia is an inorganic chemical compound of nitrogen and hydrogen with the formula NH3. A stable binary hydride and the simplest pnictogen hydride, ammonia is a colourless gas with a distinctive pung
Nitrogen fixation
…is a chemical process by which the abundant but relatively inert molecular dinitrogen (N 2) is converted into bioavailable nitrogen compounds such as ammonia (NH 3) and nitrates (NO 3). It occurs both biologically and abiologically, the latter either naturally through weather phenomena (e.g. lightning) or…
A train carrying anhydrous ammonia through Bray, Ireland
Liquid ammonia bottle
Jabir ibn Hayyan wrote about ammonia in the 9th century
This high-pressure ammonia reactor was built in 1921 by BASF in Ludwigshafen and was re-erected on the premises of the University of Karlsruhe in Germany.