(0 2 N0--R) n --NR' n ' . HN0 3
wherein each R is an N-substituent of the group of alkylene, hydroxyalkylene, and aminoalkylene, each R' is an N-substituent of the group of H, alkyl, hydroxyalkyl and aminoalkyl, one carbon-containing member of the total of said N-substituents containing from one to four carbon atoms and all remaining carbon-containing members of said total containing from one to three carbon atoms, n and n' are whole integers of the respective groups of 1-3 and 0-2 and n is one of the group of 1, 2 and 3 when n' is respectively one of the group of 2, 1, and 0.
Of the above defined now preferred group of sensitizer components, 2-nitratoethylammonium nitrate, bis(2-nitratoethyl)- ammonium nitrate, and tris(2-nitratoethyl)ammonium nitrate are particularly preferred due to the high degree of solubility of each in the aqueous solution phase of the explosive, and hence the high proportion of sensitizer that can be maintained in the explosive to impart sensitivity, fluidity and detonation velocity characteristics, over a broad range at substantially all blasting and storage temperature levels encountered. Further, each of the mono-, bis-, and tris(2-nitratoethyl)ammonium nitrate sensitizers exhibits especially low sensitivity to impact coupled with strong explosive strength, to provide for minimization of safety hazards during manufacture and handling of the explosive, without sacrifice of performance of the explosive product.
Further exemplary of the nitratoalkanolamine nitrate sensitizer components of the invention are: mono-, bis-, and tris-, (2-nitrato-1-propyl)ammonium nitrate, methyl-2-nitratoethylammonium nitrate, methyl bis(2-nitratoethyl)ammonium nitrate, dimethyl-2 -nitratoethylammonium nitrate, diethyl-2-nitratoethylammonium nitrate, ethyl bis(2-nitratoethyl)ammoniun nitrate, 2-butyl-2 -nitratoethylammonium nitrate, 2-(1-nitratobutyl)ammonium nitrate, 2-(1-nitrato-2-methylpropyl)ammonium nitrate, 2-nitratoethyl-2 -aminoethylammonium dinitrate, 2-nitratopropyl-2-aminoethylammonium dinitrate, 2-(1,3-dinitrato-2-ethylpropyl)ammonium nitrate, 2 -(1,3-dinitrato-2-methylpropyl)ammonium nitrate, and tris(nitratomethyl)methylammonium nitrate.
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