1. Aluminium Sulphate

2. Barium Chloride

3. H202 ( Hydrogen Peroxide )

4. Kaporite

5. PAC ( Poly Aluminium Chloride )

6. Potassium Permangganate

7. Sodium Silicate

8. Sodium Silicoflouride

9. STPP ( Sodium Tripolyposphate)

10. Etc.