How can potassium nitrate be obtained from potassium sulfate? Make the reaction equations?

The formula for potassium sulfate is K2SO4, the formula for potassium nitrate is KNO3.
Further, to obtain potassium nitrate, we use a simple exchange reaction, for example, with sodium nitrate:
K2SO4 + 2NaNO3 = Na2SO4 + 2KNO3.
Or calcium nitrate:
K2SO4 + Ca (NO3) 2 = 2KNO3 + CaSO4.



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