Chlorine Dioxide is a chemical compound with the formula ClO2. This is a reddish - yellow or greenish - yellow gas or liquid (stabalized ). As a potent oxidising agent, it is very useful in water treatment and bleaching etc.
The molecule ClO2 is a paramagnetic radical due to odd numbers of valence electrons. In 1933 L.O. Brockway proposed a structure that involved a three-electron bond. This idea further evolved into a two resonance structure involving a double bond on one side and a single bond with three electrons bond on the other.
| Properties | |
|---|---|
| Molecular formula | ClO2 |
| Molar mass | 67.45 g/mol |
| Appearance | yellowish gas or liquid |
| Density | 3.04 g/cm3 |
| Melting point | -59.5 °C |
| Boiling point | 11 °C |
| Solubility in water | 0.8 g/100 mL (20 °C) |
| Solubility | soluble in alkalies, sulfuric acid |
| Acidity (pKa) | 2.5-3.5 |
Source : wikipedia.org
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