How long is the reaction time for the production of sodium sulfate by the reaction of calcium sulfate with sodium nitrate?

Question

I want to react sodium sulfate and calcium nitrate by reacting calcium sulfate with sodium nitrate, but how long should the reaction time be?

Answer 1

What reaction do you expect to take place?

Do you want to react calcium sulfate with sodium nitrate, or calcium nitrate with sodium sulfate? I think you want the latter.

Ca(NO₃)₂(aq) + Na₂SO₄(aq) ==> CaSO₄(s) + 2NaNO₃(aq) ... balanced equation

The reaction to form a precipitate of calcium sulfate should not take very long. Depending on the temperature and the concentrations, perhaps only a few minutes.