A phase stabilized ammonium nitrate mixed crystal structure is produced by the addition of potassium fluoride. Thus the undesirable abrupt expansion and contraction of ammonium nitrate in the temperature range of use in rocket motor propellants and explosives (-55°C. to l
A method of stabilizing ammonium nitrate which comprises the steps of: a) heating an aqueous ammonium nitrate solution to less than about 120°C.; b) dissolving from 3.0% to about 5.0% by weight potassium fluoride in the aqueous solution; c) cooling the aqueous solution of potassium fluoride and ammonium nitrate to less than about 80°C.; and d) maintaining the temperature of the solution at about 77°C. until the water has evaporated leaving behind solid crystals of stabilized ammonium nitrate.
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- Fleming, Wayne C.; McSpadden, Hugh J.; Olander, Donald E.. Ammonium nitrate propellants and methods for preparing the same. USP2005076913661.
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