Applications of Nitrogen

Gaseous nitrogen (GAN) is used as a raw material or inert gas, while liquid nitrogen 

In metallurgy, foundry technology and the steel industry, nitrogen is used to  

Example A CARBOFLEX Nitrogen/Methanol Atmosphere System 

Carburising and carbonitriding are widely used in the automotive industry, mainly to enhance the load performance of transmission and engine parts in heat treatment furnaces. The maj or advantage of these processes is that they enable the production of parts with very hard surfaces and a ductile and tough core. 

Traditionally, this carrier gas is generated by understoichiometric combustion of either natural gas or propane via a catalyst in an endogas generator. The disadvantages of this method include limited gas purity, restricted flexibility and 

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J.A. Herickes J. Ribovich, Study of Military Applications of Nitrogen Tetroxide Explosives , Summary Report No 3746, Bur-Mines, NSDl (1956) 15) P. Gray, The... 

The main reasons for nitrate accumulation are the increasing application of nitrogen fertilizers and increasing generation of nitrogen-containing municipal wastes. 

In contrast to the rich chemistry of alkoxy- and aryloxyallenes, synthetic applications of nitrogen-substituted allenes are much less developed. Lithiation at the C-l position followed by addition of electrophiles can also be applied to nitrogen-containing allenes [10]. Some representative examples with dimethyl sulfide and carbonyl compounds are depicted in Scheme 8.73 [147, 157]. a-Hydroxy-substituted (benzotriazo-le) allenes 272 are accessible in a one-pot procedure described by Katritzky and Verin, who generated allenyl anion 271 and trapped it with carbonyl compounds to furnish products 272 [147]. The subsequent cyclization of 272 leading to dihydro-furan derivative 273 was achieved under similar conditions to those already mentioned for oxygen-substituted allenes. 

Applications of Fertilizers for Control of Rice Diseases. In general, the application of fertilizers cannot be relied upon to solve all our major rice disease problems however, the application of properly balanced fertilizers reduces the severity of certain major diseases. Work on stem rot (Leptosphaeria salvinii Catt.) in Arkansas (3) and Japan (26) shows that the severity of stem rot can be reduced by increasing the potassium levels of soils in the problem areas. In Arkansas it has been shown that the application of nitrogenous fertilizer significantly increases stem rot severity, whereas the application of potassium fertilizer alone or in combination with nitrogenous fertilizers decreases stem rot severity. Consequently, in Arkansas the application of potassium fertilizer is widely practiced for stem rot control. 

APPLICATION OF NITROGEN YUDE CYCLIZATIONS FOR ORGANIC SYNTHESIS... 

Figure 6.14 Four-compartment cell for controlled-potential electrolysis and coulo-metric titrations. Two central bridge compartments can be emptied to sample compartment by application of nitrogen pressure and refilled by vacuum 1, polyethylene top 2, lock ring 3, combination glass-calomel electrode 4, N2 inlet tube 5, N2 outlet tube 6, Pt gauze electrode 7, cell rinse assembly 8, polyethylene spray shield 9, 0.1 M KC1 in 3% agar gel 10, Ag anode.

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