Silver chlorite

Silver chlorite

Names
IUPAC name Silver chlorite
Other names Silver(I) chlorite
Identifiers
CAS Number	7783-91-7 Y
3D model ( JSmol )	Interactive image
ChemSpider	8031311
PubChem CID	9855611
InChI InChI=1S/Ag.ClHO2/c;2-1-3/h;(H,2,3)/q+1;/p-1
SMILES [O-]Cl=O.[Ag+]
Properties
Chemical formula	AgClO2
Molar mass	175.32 g/mol
Appearance	Slightly yellow solid
Melting point	156 °C (313 °F; 429 K)[2] (decomposes)
Solubility in water	0.45 g/100ml[1]
Refractive index (nD)	2.1[2]
Structure[3]
Crystal structure	Orthorhombic
Space group	Pcca
Lattice constant	a = 6.075 Å, b = 6.689 Å, c = 6.123 Å
Thermochemistry
Heat capacity (C)	20.81 cal/deg[4]
Std molar entropy (S⦵298)	32.16 cal/deg[4]
Std enthalpy of formation (ΔfH⦵298)	0.0 kcal/mol[1]
Hazards
GHS labelling:
Pictograms
Related compounds
Other anions	Silver chlorate Silver perchlorate Silver hypochlorite
Other cations	Sodium chlorite
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Silver chlorite is a chemical compound with the formula AgClO₂. This slightly yellow solid is shock sensitive and has an orthorhombic crystal structure.

Preparation

Silver chlorite is prepared by the reaction of silver nitrate and sodium chlorite:^[5]

AgNO₃ + NaClO₂ → AgClO₂ + NaNO₃

Reactions and properties

If normally heated, it explodes violently at 105 °C:^[2]

AgClO₂ → AgCl + O₂

If heated very carefully, it decomposes at 156 °C to form silver chloride. It can also decompose to silver chlorate is chlorous acid is present.^[2]

Silver chlorite reacts explosively with various substances such as

Silver chlorite can react with anhydrous ammonia to form triammonia-silver chlorite:^[6]

AgClO₂ + 3NH₃ → 3NH₃·AgClO₂

References