Chlorous acid, calciumsalt (8CI,9CI)

IUPAC Name: Calcium dichlorite 
Molecular Formula: CaCl₂O₄
Molecular Weight: 174.98g/mol
Density: 1.595g/cm³
Appearance: white granular solid
Transport information: 1453
Freely Rotating Bonds: 0
Polar Surface Area: 37.3 Å² 
Air and Water Reactions: decomposed by water to calcium hydroxide and chlorine dioxide, an explosive oxidizing gas.
The Cas Register Number of Calcium chlorite is 14674-72-7.The chemical synonyms of Calcium chlorite (CAS NO.14674-72-7) are Calcium chlorite ; Bischlorous acid calcium salt .The molecular structure of Calcium chlorite (CAS NO.14674-72-7) is .

 Calcium chlorite (CAS NO.14674-72-7) is used as sterilant and strong oxidizing agent .

A strong oxidizer. Ignites on contact with potassium thiocyanate. Reaction with Cl₂ yields explosive ClO₂. When heated to decomposition it emits toxic fumes of Cl⁻. See also CHLORITES and CALCIUM COMPOUNDS.
Hazard Codes: O
Risk Statements: 36/37/38 
R36/37/38: Irritating to eyes, respiratory system and skin.
HazardClass 5.1

DOT Classification:  5.1; Label: Oxidizer

  Calcium chlorite (CAS NO.14674-72-7) is a strong oxidizing agent. Accelerate the burning of combustible materials. Ignites on contact with potassium thiocyanate [Lewis] . Reaction with chlorine yields explosive chlorine dioxide gas. Reaction with ammonia produces ammonium chlorite, which is shock-sensitive. Finely divided mixtures with metallic or organic substances are highly flammable and may be ignited by friction The structure of  Calcium chlorite (CAS NO.14674-72-7) , Ca(ClO₂)₂ , has been refined from X-ray powder diffraction data using the Rietveld method. The compound crystallizes in the orthorhombic space group Ccca (Ccce), with Z = 4. The structure is based on separate layers parallel to the ac plane, consisting of calcium cations that are coordinated by chlorite anions; the O atoms form almost ideal square antiprisms. Within the layers, each anion bridges four metal cations. The Ca atoms are located on special positions of 222 symmetry, the Cl atoms lie on twofold axes and the O atoms are in general positions. The compound is isostructural with strontium chlorite, Sr(ClO₂)₂ , and lead chlorite, Pb(ClO₂)₂ .Its extinguishing agent is water.