Sodium periodate

Sodium periodate
Names
IUPAC name
Sodium periodate
Other names
Sodium metaperiodate
Identifiers
3D model (JSmol)
ChEBI
ChemSpider
ECHA InfoCard 100.029.270 Edit this at Wikidata
EC Number
  • meta: 232-197-6
  • para: 237-720-1
  • trihydrogen: 239-681-6
RTECS number
  • meta: SD4550000
UNII
  • InChI=1S/HIO4.Na/c2-1(3,4)5;/h(H,2,3,4,5);/q;+1/p-1 checkY
    Key: JQWHASGSAFIOCM-UHFFFAOYSA-M checkY
  • meta: InChI=1/HIO4.Na/c2-1(3,4)5;/h(H,2,3,4,5);/q;+1/p-1
    Key: JQWHASGSAFIOCM-REWHXWOFAO
  • para: InChI=1S/H5IO6.3Na/c2-1(3,4,5,6)7;;;/h(H5,2,3,4,5,6,7);;;/q;3*+1/p-3
    Key: DSYMXPNUZLZKOA-UHFFFAOYSA-K
  • ortho: InChI=1S/H5IO6.5Na/c2-1(3,4,5,6)7;;;;;/h(H5,2,3,4,5,6,7);;;;;/q;5*+1/p-5
    Key: RAJUJHHGBPSUAC-UHFFFAOYSA-I
  • trihydrogen: InChI=1S/H5IO6.2Na/c2-1(3,4,5,6)7;;/h(H5,2,3,4,5,6,7);;/q;2*+1/p-2
    Key: PEPDKRLBEGSBRW-UHFFFAOYSA-L
  • meta: [O-]I(=O)(=O)=O.[Na+]
  • para: OI(=O)(O)([O-])([O-])[O-].[Na+].[Na+].[Na+]
  • ortho: [O-]I(=O)([O-])([O-])([O-])[O-].[Na+].[Na+].[Na+].[Na+].[Na+]
  • trihydrogen: OI(=O)(O)(O)([O-])[O-].[Na+].[Na+]
Properties
NaIO4
Molar mass 213.8918 g/mol
Appearance white crystals
Density 3.865 g/cm3 (anhydrous)
3/210 g/cm3
Melting point 300 °C (572 °F; 573 K) (anhydrous)
175 °C (347 °F; 448 K) (trihydrate) (decomposes)
91 g/L[1]
Solubility soluble in acids
Structure
tetragonal (anhydrous)
trigonal (trihydrate)
Hazards
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
Related compounds
Other anions
 sodium perchlorate, sodium perbromate
Other cations
 potassium periodate, periodic 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 periodate is an inorganic salt, composed of a sodium cation and the periodate anion. It may also be regarded as the sodium salt of periodic acid. Like many periodates, it can exist in two different forms: sodium metaperiodate (formula‍ NaIO4) and sodium orthoperiodate (normally Na2H3IO6, but sometimes the fully reacted salt Na5IO6). Both salts are useful oxidising agents.[2]

  1. ^ Record of Natriumperiodat in the GESTIS Substance Database of the Institute for Occupational Safety and Health, accessed on 2018-01-08.
  2. ^ Andrew G. Wee, Jason Slobodian, Manuel A. Fernández-Rodríguez and Enrique Aguilar "Sodium Periodate" e-EROS Encyclopedia of Reagents for Organic Synthesis 2006. doi:10.1002/047084289X.rs095.pub2