Storage of nitrogen

Cant, N.V. and Patterson, M.J. (2002) The Storage of Nitrogen Oxide on Alumina-Supported Barium Oxide, Catal. Today, 73, 271. 

Lipson, D.A., Bowman, W.D. and Monson, R.K. (1996) Luxury uptake and storage of nitrogen in the rhizomatous alpine herb, Bistorta bistortoides. Ecology, T7, 1277-85. 

Nonprotein amino acids may be used as a storage of nitrogen. Seeds and roots of plants, for instance, may contain these substances in high concentration. 5-Hydroxy-L-tryptophan, for instance, accounts for 14 % of the seed weight of Griffonia simplicifolia L-3,4-dihydroxyphenylalanine for more than 8 % of the seed weight of Mucuna mutisiana, and 5-iV-acetyl-L-ornithine for 10 %of the roots of Corydalis cava. 

Lean phase storage of nitrogen oxides Rich phase regeneration of NO. storage materia... 

The Aluminum Association, Aluminium for storage of nitrogen fertilizer solutions, 1970. 

Ureides are a class of cyclic or acyclic nitrogenous organic compounds derived from or structurally related to urea. Representatives of this class which have been found in plants include allantoin, allantoic acid, citrulline, uric acid, hypoxanthine, xanthine, caffeine, hydroxycitruUine, and albizziine. The structures of allantoin (ALN), allantoic acid (ALA), and citrulline (CIT), ureides which occur throughout the plant kingdom, are presented in Fig. 1. These ureido compounds play an essential role in the assimilation, metabolism, transport, and storage of nitrogen in plants. In this chapter, attention will be focused on the occurrence, function, synthesis, and metabolism of these key metabolites. 

Following certain refining processes like catalytic cracking, sizeable amounts of nitrogen can appear in light cuts and cause quality problems such as instability in storage, brown color, and gums. 

The amine ends also react with atmospheric contaminants, such as SO2 and oxides of nitrogen and ozone, under ambient storage conditions (50). This phenomenon is referred to as aging and results in reduced acid dye affinity. 

Potassium 3-aniinopropylaniide [56038-00-7] (KAPA), KNHCH2CH2CH2-NH2, pX = 35, can be prepared by the reaction of 1,3-diaminopropane and potassium metal or potassium hydride [7693-26-7] (57—59). KAPA powder has been known to explode during storage under nitrogen in a drybox, and is therefore made in situ. KAPA is extremely effective in converting an internal acetylene or aHene group to a terminal acetylene (60) (see Acetylene-DERIVED chemicals). 

Under atmospheric conditions, 3-aminophenol is the most stable of the three isomers. Both 2- and 4-aminophenol are unstable they darken on exposure to air and light and should be stored in brown glass containers, preferably in an atmosphere of nitrogen. The use of activated iron oxide in a separate cellophane bag inside the storage container (116), or the addition of staimous chloride (117), or sodium bisulfite (118) inhibits the discoloration of aminophenols. The salts, especially the hydrochlorides, are more resistant to oxidation and should be used where possible. 

Minor and potential new uses include flue-gas desulfurization (44,45), silver-cleaning formulations (46), thermal-energy storage (47), cyanide antidote (48), cement additive (49), aluminum-etching solutions (50), removal of nitrogen dioxide from flue gas (51), concrete-set accelerator (52), stabilizer for acrylamide polymers (53), extreme pressure additives for lubricants (54), multiple-use heating pads (55), in soap and shampoo compositions (56), and as a flame retardant in polycarbonate compositions (57). Moreover, precious metals can be recovered from difficult ores using thiosulfates (58). Use of thiosulfates avoids the environmentally hazardous cyanides. 

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