IMPROVING THE THERMAL STABILITY OF AMMONIUM NITRATE BASED ON LOCAL RAW MATERIALS

This article investigates methods for improving the thermal stability of ammonium nitrate based on local raw materials extracted in Uzbekistan — phosphogypsum, bentonite, and potassium chloride. Experimental results show that adding 3–5% of a phosphogypsum–bentonite mixture increases the decomposition temperature of ammonium nitrate from 184°C to 196°C. New composite formulations are proposed to suppress critical phase transitions and reduce hygroscopicity. The obtained results offer the possibility of producing more stable and safer ammonium nitrate for the heavy industry and agricultural sectors.