A solution:
Potassium Permanganate, KMnO4
CAS registry number : 7722-64-7

B solution:
Ammonium Iron(3) sulfate, FeNH4(SO4)2, 12.0%
Sulfuric Acid, H2SO4, 15.0%
Phosphoric Acid, H3PO4, 0.9%
Silver Sulfate, Ag2SO4
Water, H2O, 71.4%