Sodium perchlorate

Sodium perchlorate
Sodium perchlorte
Names
Other names
  • Perchloric acid, sodium salt
  • Sodium chlorate(VII)
  • Sodium hyperchlorate
Identifiers
3D model (JSmol)
ChEBI
ChEMBL
ChemSpider
ECHA InfoCard 100.028.647 Edit this at Wikidata
EC Number
  • 231-511-9
RTECS number
  • SC9800000
UNII
UN number 1502
  • InChI=1S/ClHO4.Na/c2-1(3,4)5;/h(H,2,3,4,5);/q;+1/p-1 checkY
    Key: BAZAXWOYCMUHIX-UHFFFAOYSA-M checkY
  • InChI=1/ClHO4.Na/c2-1(3,4)5;/h(H,2,3,4,5);/q;+1/p-1
    Key: BAZAXWOYCMUHIX-REWHXWOFAU
  • [Na+].[O-]Cl(=O)(=O)=O
Properties
NaClO4 (anhydrous)
NaClO4·H2O (monohydrate)
Molar mass 122.44 g/mol (anhydrous)
140.45 g/mol (monohydrate)
Appearance White crystalline solid
Density 2.4994 g/cm3 (anhydrous)
2.02 g/cm3 (monohydrate)
Melting point 468 °C (874 °F; 741 K) (decomposes, anhydrous)
130 °C (monohydrate)
Boiling point 482 °C (900 °F; 755 K) (decomposes, monohydrate)
209.6 g/(100 mL) (25 °C, anhydrous)
209 g/(100 mL) (15 °C, monohydrate)
1.4617
Structure
orthorhombic
Hazards
GHS labelling:
GHS03: Oxidizing GHS07: Exclamation mark GHS08: Health hazard
Danger
H271, H302, H319, H373
P102, P220, P305+P351+P338, P338
NFPA 704 (fire diamond)
Flash point 400 °C (752 °F; 673 K)
Safety data sheet (SDS) ICSC 0715
Related compounds
Other anions
Other cations
Related compounds
Perchloric 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 checkY☒N ?)

Sodium perchlorate is an inorganic compound with the chemical formula NaClO4. It consists of sodium cations Na+ and perchlorate anions ClO4. It is a white crystalline, hygroscopic solid that is highly soluble in water and ethanol. It is usually encountered as sodium perchlorate monohydrate NaClO4·H2O. The compound is noteworthy as the most water-soluble of the common perchlorate salts.

Sodium perchlorate and other perchlorates has been found on the planet Mars, first detected by the NASA probe Phoenix in 2009. This was later confirmed by spectral analysis by the Mars Reconnaissance Orbiter in 2015 of what is thought to be brine seeps which may be the first evidence of flowing liquid water containing hydrated salts on Mars.[1][2]

  1. ^ Wadsworth, Jennifer; Cockell, Charles S. (July 6, 2017). "Perchlorates on Mars enhance the bacteriocidal effects of UV light". Scientific Reports. 7 (2017, #4662): 4662. Bibcode:2017NatSR...7.4662W. doi:10.1038/s41598-017-04910-3. PMC 5500590. PMID 28684729.
  2. ^ Delbecq, Denis (September 28, 2015). "De l'eau liquide répérée sur les pentes martiennes" [Liquid water spotted on Martian slopes]. Le Temps (in French). Archived from the original on January 18, 2017. Retrieved August 23, 2021.