Nitrogen-rich compound

For the generation of more nitrogen-rich compounds, a nitride is included in the reaction. This synthesis allows the formation of different nitridoborate (8) ions as well as nitridoborate nitrides (9) [26] ... 

Metal-rich compounds are readily obtained when a metallothermic reduction is included into the metathesis reaction by using an electropositive metal (10). In addition, metal-rich and nitrogen-rich compounds are obtained when a metal and a metal nitride are employed in reactions (11, 12) ... 

Keywords Tetrazoles Tetrazines High energy density materials Nitrogen-rich compounds Energetic materials... 

NITROGEN-RICH COMPOUNDS FROM GUANIDINE AND ITS DERIVATIVES... 

Other groups, including azide, peroxide, diazophenols, and nitrogen-rich compounds derived from guanidine derivatives. 

The research in this direction commenced with the studies on materials from the class of azotetrazolates and tetrazines that can be relatively easily isolated [280-284]. The high potential of some nitrogen-rich compounds such as diamino azobistetrazine (DAATz) [Structure (2.65)] [280], 1,4-dihydrazino tetrazine (DHTz) [Structure (2.66)] [281] and azotetrazolate salts [Structure (2.67)] [282-284] has been reported in the literature. The structures of these compounds are shown in Figure 2.4. 

Melamine is a nitrogen-rich compound. Because the protein content of grain is tested... 

Figure 4.1 shows the influence of the oxygen balance on conventional CHNO-explosives. Usually (this is the case for very nitrogen-rich compounds as well) a good oxygen balance results in a greater (more negative) heat of explosion and therefore leads to a better performance of the explosive. 

One synthetic approach is to synthesize nitrogen-rich compounds (N > 60 %), which also contain oxidizing groups (e.g. nitro — N02, nitrimino =N -N02, Fig. 9.6), in order to achieve the best possible oxygen balance (Q). This is important because in principal, it is always better to have the oxidizer and fuel combined in one molecule (in contrast to mixtures), because this generally results in superior... 

The calculated detonation velocities for the second generation of nitrogen-rich compounds (which are one of the criteria for the performance of explosives) are not only better than those of the first generation, but in the case of HAT-DN it is even better than the values for RDX and HMX (Fig. 12.5). 

Agriculture demands vast quantities of fertilizers to supplement soil nutrients this is critical when the same land is used year after year for crop production. Essential nutrients are N, P, K (the three required in largest amounts), Ca, Mg and S plus trace elements. In 2002, in the US, direct use and its conversion into other nitrogenous fertilizers accounted for 88% of all NH3 produced. In addition to NH3 itself, the nitrogen-rich compound C0(NH2)2 (urea) is of prime importance, along with... 

The primary use of ammonium nitrate is the manufacture of fertilizers. In 2005, about 2 million metric tons (2.2 million short tons) of ammonium nitrate fertilizer was used in the United States. The compound is added to soil to provide the nitrogen that plants need to grow. It may he used by itself or in combination with another nitrogen-rich compound, urea, in a mixture known as UAN. 

Another series of oxynitrides which, in contrast to most of the preceding nitrogen-rich compounds, has more or less equal amounts of the two nonmetals is the M Si202N2 series, where M is a divalent cation (typically Ca, Sr, or Ba) [43]. All of these compounds are monoclinic, and would appear to be essentially point compositions. 

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