The overall equation for the synthesis of alum:
2 Al(s) + 2 KOH + 4 H2SO4 + 22 H2O→
2 KAl (SO4)2•12H2O + 3H2
The o'keefe's have 50 gallons of cucumbers for pickling. The1.5 M KOH solution costs 5$ per liter, ethanol costs 25$ per liter and 9 MH2SO4 solution costs 7.50$ per liter. A 50 g jar of alum from the store costs 6.79$. Do you think it would be worth the time for the o'keef's to make their own alum from discarded aluminum cans?