The molecular formula for calcium chlorite is CaCl2O4. It has a molecular weight of 174.98 grams per mole and has a density of 1.595 grams per cubic centimeter. Calcium chlorite appears as a white granular solid.
Calcium chlorite ignites when it comes into contact with potassium thiocynate. When calcium chlorite mixes with chlorine, chlorine dioxide gas is formed. If dissolved in water, it becomes calcium hydroxide and chlorine dioxide. These reactions mean that calcium chlorite is an oxidizer and can accelerate a fire if burned. It can also start a fire if it comes into contact with burnable materials, such as paper, oil or wood. Calcium chlorite is harmful to the human body.