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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
Assay:
≥99.8%
99.8-100.3% dry basis (ACS specification)
grade:
ACS reagent
form:
crystalline powder
Pricing and availability is not currently available.

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

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Certificates of Analysis (COA)

Lot/Batch Number
MKCV9688
MKCV8287
MKCL6465
MKCW8437
MKCV5217

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Questions

1–3 of 3 Questions  

  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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  3. Is NaIO4 stable in water? Can it be stored as solution, or should it be prepared from powder each time before experiment?

    1 answer

    1. The solution stability of this material has not been determined. A conservative approach would be to prepare fresh with each use.

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