②热稳定性差 挥发性非氧化性酸铵盐 NH4CI->NH3(8+HCIg (NH4)2C03->2NH3 (g+CO2(g+h,o(g NH4HCO3△、NH3(g)+CO2(g)+H2QO(g 非挥发性,非氧化性酸铵盐 (NH4)3PO4-3NH3(g+H3 PO4 5(NH4)SOA-A>NH3(g)+NHHSO挥发性非氧化性酸铵盐 N H HCO N H (g) C O (g) H O(g) (NH ) C O 2N H (g) C O (g) H O(g) N H C l N H (g) HCl(g) 4 3 3 2 2 4 2 3 3 2 2 4 3 ⎯→ + + ⎯→ + + ⎯→ +    非挥发性，非氧化性酸铵盐 4 2 4 3 4 4 4 3 4 3 3 4 (NH ) SO NH (g) NH HSO (NH ) PO 3NH (g) H PO ⎯→ + ⎯→ +   ② 热稳定性差