Sodium chlorite

Sodium chlorite
Names
IUPAC name
Sodium chlorite
Other names
Chlorous acid, sodium salt
Textone
Identifiers
3D model (JSmol)
ChEBI
ChemSpider
ECHA InfoCard 100.028.942
EC Number
  • 231-836-6
KEGG
RTECS number
  • VZ4800000
UNII
UN number 1496
  • InChI=1S/ClHO2.Na/c2-1-3;/h(H,2,3);/q;+1/p-1 Y
    Key: UKLNMMHNWFDKNT-UHFFFAOYSA-M Y
  • InChI=1/ClHO2.Na/c2-1-3;/h(H,2,3);/q;+1/p-1
    Key: UKLNMMHNWFDKNT-REWHXWOFAT
  • [Na+].[O-]Cl=O
Properties
NaClO2
Molar mass 90.442 g/mol (anhydrous)
144.487 g/mol (trihydrate)
Appearance white solid
Odor odorless
Density 2.468 g/cm3, solid
Melting point anhydrous decomposes at 180–200 °C
trihydrate decomposes at 38 °C
75.8 g/100 mL (25 °C)
122 g/100 mL (60 °C)
Solubility slightly soluble in methanol, ethanol
Acidity (pKa) 10–11
Structure
monoclinic
Thermochemistry
−307.0 kJ/mol
Pharmacology
D03AX11 (WHO)
Hazards
Occupational safety and health (OHS/OSH):
Ingestion hazards
 Category 3
Inhalation hazards
 Category 2
Eye hazards
 Category 1
Skin hazards
 Category 1B
GHS labelling:
Danger
H272, H301, H310, H314, H330, H400
P210, P220, P221, P260, P262, P264, P270, P271, P273, P280, P284, P301+P330+P331, P303+P361+P353, P305+P351+P338, P310, P361, P363, P370+P378, P391, P403+P233, P405, P501
NFPA 704 (fire diamond)
2
0
1
OX
Flash point Non-flammable
Lethal dose or concentration (LD, LC):
350 mg/kg (rat, oral)
Safety data sheet (SDS) SDS
Related compounds
Other anions
 Sodium chloride
Sodium hypochlorite
Sodium chlorate
Sodium perchlorate
Other cations
 Potassium chlorite
Barium chlorite
Related compounds
 Chlorine dioxide
Chlorous acid
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
N verify (what is YN ?)
Infobox references

Sodium chlorite (NaClO2) is a chemical compound used in the manufacturing of paper and as a disinfectant.

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