Skip to Content
Merck
All Photos(3)

Key Documents

View All Documentation

210056

Sigma-Aldrich

Potassium periodate

99.8%, ACS reagent

Synonym(s):

Periodic acid potassium salt, Potassium (meta)periodate

Sign Into View Organizational & Contract Pricing
All Photos(3)

About This Item

Linear Formula:
KIO4
CAS Number:
7790-21-8
Molecular Weight:
230.00
EC Number:
232-196-0
MDL number:
MFCD00011407
UNSPSC Code:
12352300
PubChem Substance ID:
329752072
NACRES:
NA.21

grade

ACS reagent

Quality Level

200

Assay

99.8%
99.8-100.3% (ACS specification)

form

powder

reaction suitability

reagent type: oxidant

impurities

≤0.01% other halogens

pH

~5.1 (25 °C, 5 g/L)

mp

582 °C (lit.)

cation traces

Mn: ≤1 ppm

SMILES string

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

InChI

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

InChI key

FJVZDOGVDJCCCR-UHFFFAOYSA-M

Looking for similar products? Visit Product Comparison Guide

General description

Potassium periodate is widely used as an oxidizing agent. It produces singlet oxygen (1O2) in alkaline medium via a non-photochemical pathway. This singlet oxygen can selectively oxidizes aqueous organic pollutants.

Application

Potassium periodate may be employed as a chromogenic reagent for the sensitive estimation of phenothiazine drugs (either in pure form or in pharmaceutical formulations). It may also be used in the following:
  • To compose silica-based slurries for polishing of ruthenium surface.
  • To prepare slurry containing glycine for ruthenium and copper polishing.
  • Spectrophotometric estimation of manganese in soil and fertilizer samples.4

Signal Word

Danger

Hazard Statements

H271,H314,H372,H400

Hazard Classifications

Aquatic Acute 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

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’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Milne GWA.
Gardner's Commercially Important Chemicals: Synonyms, Trade Names, and Properties, 513-513 (2005)
Determination of some phenothiazine drugs based on colour reaction with potassium periodate.
Basavaiah K, et al.
Analytical Letters, 33(1), 43-51 (2000)
Alok D Bokare et al.
Environmental science & technology, 49(24), 14392-14400 (2015-11-26)
A nonphotochemical generation of singlet oxygen ((1)O2) using potassium periodate (KIO4) in alkaline condition (pH > 8) was investigated for selective oxidation of aqueous organic pollutants. The generation of (1)O2 was initiated by the spontaneous reaction between IO4(-) and hydroxyl
Improved removal selectivity of ruthenium and copper by glycine in potassium periodate (KIO4)-based slurry.
Zeng X, et al.
Journal of the Electrochemical Society, 159(11), C525-C529 (2012)
Ruthenium polishing using potassium periodate as the oxidizer and silica abrasives.
Peethala BC and Babu SV.
Journal of the Electrochemical Society, 158(3), H271-H276 (2011)
View All Related Papers

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service