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EC No.:



(2N) 99% Periodic Acid
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(3N) 99.9% Periodic Acid
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(4N) 99.99% Periodic Acid
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(5N) 99.999% Periodic Acid
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Periodic Acid Properties (Theoretical)

Compound Formula H5IO6
Molecular Weight 227.938 g/mol
Appearance Colorless to white crystals or crystalline powder
Melting Point 122-130 °C
Boiling Point N/A
Density N/A
Solubility in H2O Soluble
Exact Mass 227.913 g/mol
Monoisotopic Mass 227.913 g/mol

Periodic Acid Health & Safety Information

Signal Word Danger
Hazard Statements H271-H314-H410
Hazard Codes O, C, N
Precautionary Statements P210-P260-P280-P305 + P351 + P338-P370 + P378-P371 + P380 + P375
RTECS Number N/A
Transport Information UN 3085 8(5.1) / PGII
WGK Germany 3
GHS Pictograms

About Periodic Acid

Periodic Acid is a strong oxidizing agent used in numerous chemical reactions such as the staining of glycoproteins and the Periodic Acid-Schiff (PAS) method of intracellular polysaccharide analysis. American Elements manufactures materials to many standard grades when applicable including Mil Spec (military grade), ACS, Reagent and Technical Grades; Food, Agricultural and Pharmaceutical Grades, Optical, Semiconductor, and Electronics Grades, and follows applicable USP, EP/BP, and ASTM testing standards. Most materials can be produced in high and ultra high purity forms (99%, 99.9%, 99.99%, 99.999%, and higher). Standard and custom packaging is available. Additional technical, research and safety (SDS) information is available. Please request a quote above to receive pricing information based on your specifications.

Periodic Acid Synonyms

Orthoperiodic Acid, Tetrahydroxyiodous acid, Paraperiodic acid, Pentahydroxy-λ5-iodane oxide, pentahydroxy(oxo)-lamda7-iodane, UNII AK1D44L87G, CAS 13444-71-8 (Metaperiodic acid, HIO4)

Chemical Identifiers

Linear Formula H5IO6
MDL Number MFCD00011344
EC No. 233-937-0
Pubchem CID 25289
IUPAC Name pentahydroxy(oxo)-λ7-iodane
InchI Identifier InChI=1S/H5IO6/c2-1(3,4,5,6)7/h(H5,2,3,4,5,6,7)

Packaging Specifications

Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Shipping documentation includes a Certificate of Analysis and Safety Data Sheet (SDS). Solutions are packaged in polypropylene, plastic or glass jars up to palletized 440 gallon liquid totes, and 36,000 lb. tanker trucks.

Related Elements


See more Iodine products. Iodine (atomic symbol: I, atomic number: 53) is a Block P, Group 17, Period 5 element with an atomic radius of 126.90447. The number of electrons in each of Iodine's shells is 2, 8, 18, 18, 7 and its electron configuration is [Kr] 4d10 5s2 5p5. The iodine atom has a radius of 140 pm and a Van der Waals radius of 198 pm. In its elemental form, iodine has a lustrous metallic gray appearance as a solid and a violet appearance as a gas or liquid solution. Elemental IodineIodine forms compounds with many elements, but is less active than the other halogens. It dissolves readily in chloroform, carbon tetrachloride, or carbon disulfide. Iodine compounds are important in organic chemistry and very useful in the field of medicine. Iodine was discovered and first isolated by Bernard Courtois in 1811. The name Iodine is derived from the Greek word "iodes" meaning violet.


June 08, 2023
Los Angeles, CA
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