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Merck
CN

221929

Iodic acid

ACS reagent, ≥99.5%

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About This Item

Empirical Formula (Hill Notation):
HIO3
CAS Number:
Molecular Weight:
175.91
NACRES:
NA.21
PubChem Substance ID:
UNSPSC Code:
12352106
EC Number:
231-962-1
MDL number:
Assay:
≥99.5%
Form:
crystals or chunks
Grade:
ACS reagent
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InChI key

ICIWUVCWSCSTAQ-UHFFFAOYSA-N

InChI

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

SMILES string

OI(=O)=O

grade

ACS reagent

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%

Quality Level

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pictograms

Flame over circleCorrosion

signalword

Danger

hcodes

Hazard Classifications

Ox. Sol. 2 - Skin Corr. 1B

Storage Class

5.1B - Oxidizing hazardous materials

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

Regulatory Information

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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)
Raman studies of iodic acid and sodium iodate.
Durig JR, et al.
The Journal of Physical Chemistry, 69(11), 3886-3892 (1965)
Manometric carbon determination.
Van Slyke DD and Folch J.
The Journal of Biological Chemistry, 136(2), 509-541 (1940)
The rate of the reaction between iodic and hydriodic acids.
Dushman S.
The Journal of Physical Chemistry, 8(7), 453-482 (1904)
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

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