Study on Thermal Stability of Ammonium Nitrate

Mechanism and influence factors on thermal decomposition of ammonium nitrate between 100～150 ℃ are studiedEffect of stabilizing agents and activator is emphatically analyzedThe thermal stability of system is reduced by activators,such as moisture,nitric acid,sulfuric acid and phosphoric acidCompared with pure ammonium nitrate,when 05%(wt%) of the activator in the system,the induction time could be decreased by 50%Adding 3% of zinc oxide or aluminum hytroxide,the decomposition reaction might be effectively inhibitedBut for calcium carbonate or potassium chloride,to achieve the same effect needs 15%Urea is a suitable stabilizing agent of ammonium nitrateDecomposition at 130 ℃ is stopped when there is 1% of urea in the system 