| Chemical Name | Chemical Symbol | Common Name | Used For |
| Aluminum Sulfate | Al2 (SO4)3 | Alum; Papermakers Alum, | Coagulation |
| Filter Alum | Coagulation | Ammonia Gas | Disinfection (when combined with chlorine to form chloramines NH2Cl) |
| Ammonia | NH3 | Ammonia Gas | Disinfection (when combined with chlorine to form chloramines NH2Cl) |
| Calcium Bicarbonate | Ca(HCO3)2 | ||
| Calcium Carbonate | CaCO3 | Calcite; Limestone; Whitting; Crushed Georgia Marble; Chalk | Neutralization |
| Calcium Chloride | CaCl2 | “Ice Melting” Salt | |
| Calcium Hydroxide | Ca(OH)2 | Hydrated Lime; Slaked Lime | Stabilization |
| Calcium Hypochlorite | Ca(OCl)2 | H.T.H. | Disinfection |
| Calcium Oxide | CaO | Chemical Lime; Quicklime; Burnt Lime | Lime Softening |
| Calcium Sulfate | CaSO4 | Gypsum; Land Plaster; Plaster of Paris | Adsorption |
| Carbon | C | Activated Carbon | Adsorption |
| Carbon Dioxide | CO2 | Stabilization | |
| Chlorine | Cl2 | Chlorine Gas | Disinfection |
| Chlorine Dioxide | ClO2 | Disinfection | |
| Copper Sulfate (cupric) | CuSO4 | Blue Stone; Blue Vitriol | Biocide |
| Ferric Chloride | FeCl3 | Coagulation | |
| Ferric Hydroxide | Fe(OH)3 | ||
| Ferrous Bicarbonate | Fe(HCO3)2 | Dissolved Iron | |
| Ferrous Sulfate | FeSO4 | Copperas; Green Vitriol | Coagulation |
| Fluosilicic Acid | H2SiF6 | Hydrofluosilicic Acid | Fluoridation |
| Hydrochloric Acid | HCl | Muriatic Acid | DI Cation Regenerant |
| Hypochlorous Acid | HOCl | Disinfection | |
| Magnesium Carbonate | MgCO3 | Magnesite | |
| Magnesium Chloride | MgCl2 | ||
| Magnesium Hydroxide | Mg(OH)2 | Milk of Magnesia | |
| Magnesium Sulfate | MgSO4 | Epson Salts | |
| Nitric Acid | HNO3 | Aqua Fortis | |
| Potassium Chloride | KCl | Table Salt Substitute; Muriate of Potash | Softener Regenerant |
| Potassium Hydroxide | KOH | Caustic Potash | |
| Potassium Nitrate | KNO | Salt Peter; Niter | |
| Potassium Permanganate | KMnO4 | Permanganate of Potash; Cha- meleon Mineral | Mn Zeol. Regenerant Chemical Feed |
| Sodium Bisulfate | NaHSO4 | Sodium Acid sulfate; Nitre Cake | |
| Sodium Bicarbonate | NaHCO3 | Baking soda; Bicarbonate of Soda | |
| Sodium Carbonate | NaCO3 | Soda Ash; (Sal Soda; Washing Soda) | Neutralization |
| Sodium Chlorite | NaClO2 | Disinfection | |
| Sodium Chloride | NaCl | Common (Table) Salt | Softener Regenerant |
| Sodium Fluoride | NaF | Fluoridation | |
| Sodium Hydroxide | NaOH | Caustic Soda; Lye; Soda Lye | DI Anion Regenerant Stabilization |
| Sodium Hypochlorite | NaOCl | Household Bleach | Disinfection |
| Sodium Nitrate | NaNO3 | Chile Salt Peter | |
| Sodium Sulfite | Na2SO3 | Santosite | Deaereation; Dechlorination |
| Sodium Sulfate | Na2SO4 | Glauber’s Salt | |
| Sulfuric Acid | H2SO4 | Oil of Vitriol; Vitriol, Oleum = 66 ° Be | DI Cation Regenerant |