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311448

Sigma-Aldrich

Sodium periodate

ACS reagent, ≥99.8%

Synonym(s):

Sodium (meta)periodate

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About This Item

Linear Formula:
NaIO4
CAS Number:
7790-28-5
Molecular Weight:
213.89
EC Number:
232-197-6
MDL number:
MFCD00003534
UNSPSC Code:
12352302
PubChem Substance ID:
329753668
NACRES:
NA.21

grade

ACS reagent

Quality Level

200

Assay

≥99.8%
99.8-100.3% dry basis (ACS specification)

form

crystalline powder

reaction suitability

reagent type: oxidant

impurities

≤0.02% other halogens (as Cl)

pH

3.5-5.5 (25 °C, 107 g/L)

mp

300 °C (dec.) (lit.)

cation traces

Mn: ≤3 ppm

storage temp.

room temp

SMILES string

[Na+].[O-]I(=O)(=O)=O

InChI

1S/HIO4.Na/c2-1(3,4)5;/h(H,2,3,4,5);/q;+1/p-1

InChI key

JQWHASGSAFIOCM-UHFFFAOYSA-M

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General description

Sodium periodate is an inorganic salt commonly used as an oxidizing agent for various organic substrates and a co-oxidant in a few other oxidation reactions. The oxidation of sodium periodate takes place in a water medium, but an organic co-solvent is used for organic substrates that are insoluble in water.

Application

Sodium periodate can be used as an oxidizing agent:
  • In the selective oxidation of sulfides to sulfoxides.
  • For the oxidative cleavage of a variety of 1,2-diols to generate aldehydes or ketones.
  • In the oxidation of diaryl, dialkyl, and aryl alkyl selenides to the respective selenoxides.
  • In the selective alkene epoxidation and alkane hydroxylation reactions.
  • In the selective oxidation of activated cellulose to obtain dialdehyde cellulose (DAC) by cleavage of the bond between C2 – C3 in the glucose unit.
  • It can also be used as an iodinating agent for the iodination of arenes and halo compounds.

Signal Word

Danger

Hazard Statements

H271,H314,H372,H410

Hazard Classifications

Aquatic Acute 1 - Aquatic Chronic 1 - Eye Dam. 1 - Ox. Sol. 1 - Skin Corr. 1C - STOT RE 1

Target Organs

Thyroid

Storage Class Code

5.1A - Strongly oxidizing hazardous materials

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Dextrin, a glucose polymer with low molecular weight, was used to develop a fully resorbable hydrogel, without using chemical initiators. Dextrin was first oxidized (oDex) with sodium periodate and then cross-linked with adipic acid dihidrazide, a nontoxic cross-linking molecule. Furthermore
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