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60450 Sigma-Aldrich

Potassium (meta)periodate

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

Synonym: Periodic acid potassium salt, Potassium periodate

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Properties

Related Categories Analytical Reagents, Analytical Reagents for General Use, Analytical/Chromatography, Essential Chemicals, O-P, Puriss p.a. ACS,
Quality Level   200
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

Description

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

Safety & Documentation

Safety Information

Signal word 
Danger
Hazard statements 
Target organs 
Missing Phrase - N11.00500180
RIDADR 
UN 3085 8(5.1) / PGI
WGK Germany 
3

Documents

Certificate of Analysis (COA)

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Protocols & Articles
Peer-Reviewed Papers
15

References

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