Can Calcium Nitrate be used in this synth considering it contains NH4NO3 and roughly 2 to 3 % more nitrogen as the nitrate then KNO3 does or is the oxidizing effects of NH4NO3 and KNO3 is what is needed in this synth (Calcium Nitrate is not an oxidizer).

Thanks In Advanced.....

THE SULFURIC ACID MUST BE 90%PURE?????

nnnnn