Skip to Content

Dear Customer:

The current international situation is complex and volatile, and uncertain tariff policies may potentially impact our product prices. Given these uncertainties, we value your understanding regarding order-related matters.

If you decide to place an order during this period, we reserve the right to adjust the price based on the evolving situation. We understand that market changes may cause inconvenience. We will negotiate with you if there’s a significant price fluctuation due to tariff policy changes before the order’s actual delivery, and in such cases we may adjust or cancel the order as necessary.

For important updates on recent policy changes, please click here for more details.

Merck
CN
All Photos(3)

Key Documents

View All Documentation

Safety Information

210056

Sigma-Aldrich

Potassium periodate

ACS reagent, 99.8%

Synonym(s):

Periodic acid potassium salt, Potassium (meta)periodate

Sign Into View Organizational & Contract Pricing

Select a Size

100 G
CN¥1,384.31
500 G
CN¥2,792.42

CN¥1,384.31

Available to ship onApril 23, 2025Details

Request a Bulk Order
All Photos(3)

Select a Size

Change View
100 G
CN¥1,384.31
500 G
CN¥2,792.42

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
form:
powder

CN¥1,384.31

Available to ship onApril 23, 2025Details

Request a Bulk Order

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

Looking for similar products? Visit Product Comparison Guide

Related Categories

Compare Similar Items

View Full Comparison

Show Differences

1 of 4

This Item
31144860489S1878
Potassium periodate ACS reagent, 99.8%

210056

Potassium periodate

Sodium periodate ACS reagent, ≥99.8%

311448

Sodium periodate

Potassium peroxodisulfate puriss. p.a., ACS reagent, ≥99.0% (RT)

60489

Potassium peroxodisulfate

Sodium (meta)periodate ≥99.0%

S1878

Sodium (meta)periodate

assay

99.8%, 99.8-100.3% (ACS specification)

assay

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

assay

≥99.0% (RT)

assay

≥99.0%

Quality Level

200

Quality Level

200

Quality Level

200

Quality Level

300

grade

ACS reagent

grade

ACS reagent

grade

ACS reagent, puriss. p.a.

grade

-

pH

~5.1 (25 °C, 5 g/L)

pH

3.5-5.5 (25 °C, 107 g/L)

pH

2.5-4.5 (25 °C, 27 g/L)

pH

3.5-5.5 (25 °C, 107 g/L)

mp

582 °C (lit.)

mp

300 °C (dec.) (lit.)

mp

-

mp

-

General description

Potassium periodate is widely used as an oxidizing agent.[1] It produces singlet oxygen (1O2) in alkaline medium via a non-photochemical pathway. This singlet oxygen can selectively oxidizes aqueous organic pollutants.[2]

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).[3] It may also be used in the following:
  • To compose silica-based slurries for polishing of ruthenium surface.[4]
  • To prepare slurry containing glycine for ruthenium and copper polishing.[5]
  • 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

Regulatory Information

危险化学品
  • Specification Sheet

    • Choose from one of the most recent versions:

    Certificates of Analysis (COA)

    Lot/Batch Number
    MKCX5574
    MKCW7087
    MKCV2838
    MKCS5519
    MKCQ8277

    Don't see the Right Version?

    If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

    Search for a COA

    Already Own This Product?

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

    Visit the Document Library

    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
    Milne GWA.
    Gardner's Commercially Important Chemicals: Synonyms, Trade Names, and Properties, 513-513 (2005)
    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