Disinfection chemicals - chlorine dioxide

Historical Background

The discovery of chlorine dioxide has largely been credited to Sir Humphrey Davy who produced in 1814 for the first time the compound by mixing sulfuric acid with potassium chlorate. Since its discovery, researchers have found that chlorine dioxide shares some common characteristics with chlorine.
Specifically, chlorine dioxide is a greenish-yellowish gas with a chlorine-like odor that is irritating to the eyes, nose, and throat.
Apart from these very limited similarities chlorine dioxide exhibits physical and chemical properties that are dramatically different from those of chlorine,
even though it contains a chlorine atom in its molecular structure.

The limited stability of chlorine dioxide solutions and the explosion risk associated with concentrated chlorine dioxide solutions has impeded largely in the past the use of it in industrial applications and ( drinking ) water treatment despite its superior disinfection capacities.
Chlorine dioxide is not commercially available but has to be produced on the spot. Sophisticated online production and dosing systems are developed for large industries. The DU-OX® concept, however, offers an economical and safe approach for smaller applications.