Most Hazardous Materials
Sulfuric Acid (Strong Acid), H2SO4
Ammonium Hydroxide NH4OH
Potassium Chromate (Strong Oxidizer), K2CrO4
Ferric Nitrate (Strong Oxidizer), Fe(NO3)3
Potassium Oxalate, K2C2O4
Sodium Sulfide (Strong Base, Stench), Na2S
Cupric Nitrate (Strong Oxidizer), Cu(NO3)2
Nickel Sulfate NiSO4
Stannous Chloride SnCl2
Potassium Nitrate (Strong Oxidizer), KNO3
Potassium Thiocyanate KSCN
Barium Nitrate (Strong Oxidizer), Ba(NO3)2
Less Hazardous Materials
Sodium Chloride (Table Salt), NaCl