| ABBREVIATION | MEANING |
| CD | Sodium chlorite (NaClO2) + hydrochloric acid as activator at 4% |
| CDI | Dissolution of Chlorine Dioxide, ClO2, in isotonic saline solution (0.9% NaCl) |
| CDS | Dissolution of Chlorine Dioxide, ClO2, in water (gas dissolved in water) |
| CDH | Sodium chlorite (NaClO2) + hydrochloric acid as activator at 4% activated with time |
| Cl− | Chloride ion |
| Cl₂ | Chlorine gas |
| Cl | Chlorine, Periodic Table element |
| ClO2 | Chlorine Dioxide |
| ClO2− | Chlorite ion |
| ClO3− | Chlorate ion |
| ClO4− | Perchlorate ion |
| ClO− | Hypochlorite ion |
| DMSO | Dimethyl sulfoxide |
| MMS | NaClO2 = Sodium chlorite + activator (citric acid) (Jim Humble’s designation) |
| MMS2 | Calcium Hypochlorite = Ca(ClO)2 |
| NaCl | Sodium chloride (common salt) |
| NaClO | Sodium hypochlorite |
| NaClO2 | Sodium chlorite |
| NaClO3 | Sodium chlorate |
| NaClO4 | Sodium perchlorate |
| PPM | Parts per million (e.g. 3000 ppm = 0.3%) |
