210056

Potassium periodate

99.8%, ACS reagent

• Synonym(s): Periodic acid potassium salt, Potassium (meta)periodate
• 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

Properties

• grade: ACS reagent
• 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

Description

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

Safety Information

• Pictograms: GHS03,GHS08,GHS05,GHS09
• Signal Word: Danger
• Hazard Statements: H271,H314,H372,H400
• Precautionary Statements: P210 - P260 - P273 - P280 - P303 + P361 + P353 - P305 + P351 + P338
• 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