$$Na_3AsO_4(aq) + BaCl_2(aq) \högerpil Ba_3(AsO_4)_2(s) + 3NaCl(aq)$$
Nettjonisk ekvation:
$$3Ba^{2+}(aq) + 2AsO_4^{3-}(aq) \rightarrow Ba_3(AsO_4)_2(s)$$