硝酸银滴入氨水,氨水过量,生成银氨离子:
Ag+ + 2NH3 = Ag(NH3)2+
氨水滴入硝酸银溶液:先沉淀,后溶解.
(银氨溶液制取)
Ag+ + NH3.H2O = AgOH ↓+ NH4+
AgOH + 2NH3.H2O = Ag(NH3)2+ + 2H2O
硝酸银滴入氨水,氨水过量,生成银氨离子:
Ag+ + 2NH3 = Ag(NH3)2+
氨水滴入硝酸银溶液:先沉淀,后溶解.
(银氨溶液制取)
Ag+ + NH3.H2O = AgOH ↓+ NH4+
AgOH + 2NH3.H2O = Ag(NH3)2+ + 2H2O