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58060

Sigma-Aldrich

Iodic acid

puriss. p.a., ACS reagent, ≥99.5% (RT)

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About This Item

Empirical Formula (Hill Notation):
HIO3
CAS Number:
Molecular Weight:
175.91
EC Number:
MDL number:
UNSPSC Code:
12352106
eCl@ss:
32110203
PubChem Substance ID:
NACRES:
NA.21

grade

ACS reagent
puriss. p.a.

Assay

≥99.5% (RT)

form

powder, crystals or chunks

impurities

≤0.1% total nitrogen (N)

ign. residue

≤0.01% (as SO4)

solubility

water: soluble

density

4.63 g/cm3

anion traces

bromide, chloride (as Cl-): ≤200 mg/kg
iodide (I-): ≤5 mg/kg
sulfate (SO42-): ≤150 mg/kg

cation traces

Ag: ≤5 mg/kg
Al: ≤5 mg/kg
Ba: ≤10 mg/kg
Bi: ≤5 mg/kg
Ca: ≤10 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤10 mg/kg
K: ≤50 mg/kg
Li: ≤5 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Mo: ≤5 mg/kg
Na: ≤50 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Sr: ≤5 mg/kg
Tl: ≤5 mg/kg
Zn: ≤5 mg/kg

SMILES string

OI(=O)=O

InChI

1S/HIO3/c2-1(3)4/h(H,2,3,4)

InChI key

ICIWUVCWSCSTAQ-UHFFFAOYSA-N

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General description

Iodic acid is the hydrated form of I2O5. Reaction of iodic acid with hydrogen iodide has been described by electrolytic dissociation theory. Combustion of mixture of chromic, iodic, sulfuric and phosphoric acids has been proposed. Its Raman spectra have been recorded. Vibrational assignment of IO3- has been evaluated.

Application


  • Insights into the Chemistry of Iodine New Particle Formation: The Role of Iodine Oxides and the Source of Iodic Acid.: This research provides an in-depth analysis of iodic acid′s role in new particle formation, highlighting the impact of iodine oxides in atmospheric chemistry processes (Gómez Martín et al., 2022).


  • Ion Mobility-Mass Spectrometry of Iodine Pentoxide-Iodic Acid Hybrid Cluster Anions in Dry and Humidified Atmospheres.: The study uses ion mobility-mass spectrometry to examine the properties of iodine pentoxide-iodic acid hybrid clusters under varying atmospheric conditions, providing insights for analytical chemistry applications (Ahonen et al., 2019).


  • Colour reactions of iodic acid as reagent for identifying drugs by thin-layer chromatography.: This older study explores the use of iodic acid for drug identification in thin-layer chromatography, underscoring its utility in analytical methods (Cavazzutti et al., 1983).



Other Notes

Oxidant for the decomposition of metals and organic compounds

Pictograms

Flame over circleCorrosion

Signal Word

Danger

Hazard Statements

Hazard Classifications

Ox. Sol. 2 - Skin Corr. 1B

Storage Class Code

5.1B - Oxidizing hazardous materials

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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R. Bock
Aufschlussmethoden der anorg. & org. Chemie (1972)
Spectrophotometric Methods for Determination of Tranexamic Acid and Etamsylate in Pure Form and Pharmaceutical Formulation.
Mohamed GG, et al.
Insight Pharmaceutical Sciences, 5 (2015)
Z. Sulcek et al.
Methods of Decomposition in Inorganic Analysis (1989)
Glass formation and unusual hygroscopic growth of iodic acid solution droplets with relevance for iodine oxide particles in the coastal marine boundary layer.
Murray BJ, et al.
Atmospheric Chemistry and Physics Discussions, 12(3), 7879-7908 (2012)
Raman studies of iodic acid and sodium iodate.
Durig JR, et al.
The Journal of Physical Chemistry, 69(11), 3886-3892 (1965)

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