Skip to Content
Merck
All Photos(1)

Key Documents

View All Documentation

60450

Sigma-Aldrich

Potassium (meta)periodate

puriss. p.a., ACS reagent, ≥99.8% (dried material, RT)

Synonym(s):

Periodic acid potassium salt, Potassium periodate

Sign Into View Organizational & Contract Pricing
All Photos(1)

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:
329758991
NACRES:
NB.24
form:
crystals

grade

ACS reagent
puriss. p.a.

Assay

≥99.8% (dried material, RT)

form

crystals

loss

≤0.1% loss on drying, 110 °C

pH

~5.1 (25 °C, 5 g/L)

anion traces

bromide, bromate, chloride, chlorate (as Cl-): ≤100 mg/kg
sulfate (SO42-): ≤50 mg/kg

cation traces

Ca: ≤10 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤50 mg/kg
Mg: ≤5 mg/kg
Mn: ≤1 mg/kg
Na: ≤2000 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Zn: ≤5 mg/kg

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 (meta)periodate exhibits strong oxidizing properties in acidic medium.

Application

Potassium (meta)periodate may be employed as an oxidizing reagent for the oxidation of starch. It may be employed as oxidizer in the iodine bromide method for the volumetric determination of following compounds:
  • potassium iodide
  • arsenious oxide
  • antimonous oxide
  • stannous chloride
  • mercurous chloride
  • sodium sulphite
  • sodium thiosulphate
  • sodium tetrathionate
  • ferrous sulphate
  • potassium thiocyanate
  • hydrazine sulphate
  • phenylhydrazine hydrochloride
  • hydroquinone

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

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
BCCB4625

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

Physicochemical studies on starches. Part II. The oxidation of starches by potassium metaperiodate.
Anderson DMW, et al.
Journal of the Chemical Society, 225-231 (1955)
Potassium meta-periodate as volumetric reagent: Iodine bromide method.
Singh B and Singh A.
Analytica Chimica Acta, 9, 22-25 (1953)
Jianxiu Du et al.
Luminescence : the journal of biological and chemical luminescence, 25(1), 76-80 (2009-07-25)
A simple and sensitive chemiluminescence (CL) method combined with flow injection technique was developed for the determination of naproxen. It was based upon the weak CL signal arising from the reaction of KIO(4) with H(2)O(2) being significantly increased by naproxen
Yu-Cheng Chen et al.
Luminescence : the journal of biological and chemical luminescence, 25(1), 43-49 (2009-07-25)
Chemiluminescence (CL) from the oxidation of luminol with potassium periodate in strong alkaline solutions was greatly enhanced by the combined effect of gallic acid, acetaldehyde and Mn(2+). The CL spectra exhibited only one emission band at 425 nm, indicating 3-aminophthalate
Shuhao Wang et al.
Annali di chimica, 95(1-2), 87-94 (2005-04-02)
A novel kinetic spectrophotometric method is described for the determination of rutin. The method is based on the inhibitory effect of rutin on the oxidation reaction of amaranth by potassium periodate in acidic media at 100 degrees C. The linear
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