Calculate the cost of technical Na2SO4 with a mass fraction of 95% and electrolytic hydrogen (H2 content – 97% (wt.)) Per 1 ton of technical Na2S 96%, which is formed during the reaction: Na2SO4 + 4H2 = Na2S + 4H2O2 % Na2SO4 and H2 from the theoretically necessary amount to obtain 1 ton of technical Na2S