Thermochimica Acta, Vol.233, No.2, 219-222, 1994
DSC Studies on the Effect of Particle-Size on NH4NO3 at Temperatures Between 25-Degrees-C and 100-Degrees-C
According to DSC measurements, NH4NO3 samples with particle sizes between 0.062 and 2 mm have different structural phase transition paths in the temperature range 25-100-degrees-C. Samples with particle sizes of about 2mm underwent the transition path IV --> III --> II, whereas those with particle size near 0.06 mm were more likely to undergo the transition path IV --> II.