Other double salts include 3Na2SO4·CaSO4, 3Na2SO4·MgSO4 (vanthoffite) and NaF·Na2SO4.
Διπλά άλατα είναι και τα 3Na2SO4·CaSO4, 3Na2SO4·MgSO4 (βαντχοφίτης) και NaF·Na2SO4..