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Nitrogen fixation, connection with

Nitric acid is manufactured at the present day by one of three processes (i) By the direct oxidation of nitrogen in the electric arc as indicated in connection with the fixation of nitrogen (ii) By oxidation of ammonia as indicated in connection with that compound and (iii) By the decomposition of sodium nitrate with sulphuric acid. Some chemical changes involved in the third reaction have just been discussed. The plant employed consists of (i) the distilling apparatus (ii) the condensing system (iii) the receiving vessel (iv) the bleaching system and (v) the absorption apparatus. [Pg.561]

Dinitrogen (Nj) is a ligand of great importance in connection with biological nitrogen fixation (conversion to ammonia), discussed in Section 16.3. It binds to metals much less strongly than CO because it is both a weaker o donor and a weaker n acceptor. [Pg.99]

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Nitrogen fixation

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