Sodium chlorate

Sodium chlorate
Skeletal formula of sodium chlorate
Sodium chlorate powder
Unit cell of sodium chlorate
Unit cell of sodium chlorate
Names
IUPAC name
Sodium chlorate
Other names
Sodium chlorate(V)
Identifiers
3D model (JSmol)
ChEBI
ChemSpider
ECHA InfoCard 100.028.989 Edit this at Wikidata
EC Number
  • 231-887-4
KEGG
MeSH Sodium+chlorate
RTECS number
  • FO0525000
UNII
UN number 1495, 2428
  • InChI=1S/ClHO3.Na/c2-1(3)4;/h(H,2,3,4);/q;+1/p-1 checkY
    Key: YZHUMGUJCQRKBT-UHFFFAOYSA-M checkY
  • InChI=1S/ClHO3.Na/c2-1(3)4;/h(H,2,3,4);/q;+1/p-1
    Key: YZHUMGUJCQRKBT-UHFFFAOYSA-M
  • InChI=1/ClHO3.Na/c2-1(3)4;/h(H,2,3,4);/q;+1/p-1
    Key: YZHUMGUJCQRKBT-REWHXWOFAH
  • [Na+].[O-]Cl(=O)=O
Properties
NaClO3
Molar mass 106.44 g mol−1
Appearance Colorless or white solid, hygroscopic
Odor Odorless
Density 2.49 g/cm3 (15 °C)[1]
2.54 g/cm3 (20.2 °C)[2]
Melting point 248–261 °C (478–502 °F; 521–534 K)
Boiling point 300–400 °C (572–752 °F; 573–673 K)
decomposes[1]
79 g/100 mL (0 °C)
89 g/100 mL (10 °C)
105.7 g/100 mL (25 °C)
125 g/100 mL (40 °C)
220.4 g/100 mL (100 °C)[3]
Solubility Soluble in glycerol, hydrazine, methanol
Slightly soluble in ethanol, ammonia[1]
Solubility in acetone Sparingly soluble[1]
Solubility in glycerol 20 g/100 g (15.5 °C)[1]
Solubility in ethanol 14.7 g/100 g[1]
Vapor pressure <0.35 mPa[2]
−34.7·10−6 cm3/mol
1.515 (20 °C)[4]
Structure[5]
cubic
P213
a = 6.57584 Å
4
Thermochemistry
104.6 J/mol·K[1]
129.7 J/mol·K[1]
-365.4 kJ/mol[1]
-275 kJ/mol[1]
Hazards
GHS labelling:
GHS03: OxidizingGHS07: Exclamation markGHS09: Environmental hazard[6]
Danger
H271, H302, H411[6]
P220, P273[6]
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth 2: Intense or continued but not chronic exposure could cause temporary incapacitation or possible residual injury. E.g. chloroformFlammability 0: Will not burn. E.g. waterInstability 3: Capable of detonation or explosive decomposition but requires a strong initiating source, must be heated under confinement before initiation, reacts explosively with water, or will detonate if severely shocked. E.g. hydrogen peroxideSpecial hazard OX: Oxidizer. E.g. potassium perchlorate
2
0
3
OX
Flash point Non-flammable
Lethal dose or concentration (LD, LC):
600 mg/kg (rats, oral)
700 mg/kg (dogs, oral)[1]
Safety data sheet (SDS) ICSC 1117
Related compounds
Other anions
 Sodium chloride
Sodium hypochlorite
Sodium chlorite
Sodium perchlorate
Sodium bromate
Sodium iodate
Other cations
 Ammonium chlorate
Potassium chlorate
Barium chlorate
Related compounds
 Chloric acid
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Sodium chlorate is an inorganic compound with the chemical formula NaClO3. It is a white crystalline powder that is readily soluble in water. It is hygroscopic. It decomposes above 300 °C to release oxygen[4] and leaves sodium chloride. Several hundred million tons are produced annually, mainly for applications in bleaching pulp to produce high brightness paper.[7]

  1. ^ a b c d e f g h i j k "Sodium chlorate".
  2. ^ a b "GPS Safety Summary of Sodium Chlorate" (PDF). arkema.com. Arkema. Archived from the original (PDF) on 2014-05-25. Retrieved 2014-05-25.
  3. ^ Seidell, Atherton; Linke, William F. (1952). Solubilities of Inorganic and Organic Compounds. Van Nostrand.
  4. ^ a b CID 516902 from PubChem
  5. ^ S. C. Abrahams, J. L. Bernstein (1977). "Remeasurement of Optically Active NaClO3 and NaBrO3". Acta Crystallographica. B33 (11): 3601–3604. Bibcode:1977AcCrB..33.3601A. doi:10.1107/S0567740877011637.
  6. ^ a b c Sigma-Aldrich Co., Sodium chlorate. Retrieved on 2022-02-21.
  7. ^ Cite error: The named reference Ullmann was invoked but never defined (see the help page).