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221929

Sigma-Aldrich

Iodic acid

ACS reagent, ≥99.5%

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About This Item

Empirical Formula (Hill Notation):
HIO3
CAS Number:
7782-68-5
Molecular Weight:
175.91
EC Number:
231-962-1
MDL number:
MFCD00011348
UNSPSC Code:
12352106
PubChem Substance ID:
329752285
NACRES:
NA.21

grade

ACS reagent

Quality Level

200

Assay

≥99.5%

form

crystals or chunks

impurities

≤0.01% insolubles
≤0.1% N compounds

ign. residue

≤0.02%

solubility

water: soluble

density

4.63 g/cm3

anion traces

Cl- and Br-: ≤0.02%
iodide (I-): ≤0.01%
sulfate (SO42-): ≤0.015%

cation traces

Fe: ≤0.002%
heavy metals (as Pb): ≤0.001%

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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Pictograms

Flame over circleCorrosion
GHS03,GHS05

Signal Word

Danger

Hazard Statements

H272,H314

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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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)
Manometric carbon determination.
Van Slyke DD and Folch J.
The Journal of Biological Chemistry, 136(2), 509-541 (1940)
Raman studies of iodic acid and sodium iodate.
Durig JR, et al.
The Journal of Physical Chemistry, 69(11), 3886-3892 (1965)
Allen E Haddrell et al.
The journal of physical chemistry. A, 116(40), 9941-9953 (2012-09-18)
The most used instrument in single particle hygroscopic analysis over the past thirty years has been the electrodynamic balance (EDB). Two general assumptions are made in hygroscopic studies involving the EDB. First, it is assumed that the net charge on
Barbara Krassowska-Swiebocka et al.
Molecules (Basel, Switzerland), 10(2), 394-400 (2007-11-17)
Benzene, halobenzenes, and a number of more or less deactivated arenes,including nitrobenzene, readily reacted in anhydrous HIO3/AcOH/Ac2O/conc. H2SO4 mixtures to probably give ArIO2 intermediates or other hypervalent species (not isolated). The final reaction mixtures were poured into excess aq. Na2SO3
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