| NO. | Products | CAS No. | Appearance |
| 16 | Sodium chloride | 7647-14-5 |
Colorless crystal or white powder |
| 17 | Potassium chloride | 7447-40-7 |
White crystalline small particle powder |
| 18 | Copper nitrate | 3251-23-8 |
Blue crystalline powder |
| 19 | Copper sulfate | 7758-98-7 |
Anhydrous white or off white powder, hydrated to blue crystals or powder |
| 20 | Ferric nitrate | 7782-61-8 |
Purple crystalline solid |
| 21 | Potassium ferricyanide | 13746-66-2 |
Red crystal |
| 22 | Potassium ferrocyanide | 14459-95-1 |
Slightly salty, odorless yellow crystalline particles or powders |
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