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Merck
CN

60350

Potassium hydrogen diiodate

puriss. p.a., ≥99.8% (RT)

Synonym(s):

Potassium biiodate, Potassium hydrogeniodate

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About This Item

Linear Formula:
KH(IO3)2
CAS Number:
Molecular Weight:
389.91
NACRES:
NA.21
PubChem Substance ID:
UNSPSC Code:
12352300
EC Number:
236-650-9
MDL number:
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InChI key

ACAYDTMSDROWHW-UHFFFAOYSA-M

InChI

1S/2HIO3.K/c2*2-1(3)4;/h2*(H,2,3,4);/q;;+1/p-1

SMILES string

[K+].OI(=O)=O.[O-]I(=O)=O

grade

puriss. p.a.

assay

≥99.8% (RT)

form

powder or crystals

impurities

≤0.002% total nitrogen (N)

pH

~1-2 (20 °C, 50 g/L)

anion traces

bromide, bromate, chloride, chlorate (as Cl-): ≤200 mg/kg, sulfate (SO42-): ≤50 mg/kg

cation traces

Ca: ≤20 mg/kg, Cd: ≤5 mg/kg, Co: ≤5 mg/kg, Cr: ≤5 mg/kg, Cu: ≤5 mg/kg, Fe: ≤20 mg/kg, Mg: ≤5 mg/kg, Mn: ≤5 mg/kg, Na: ≤50 mg/kg, Ni: ≤5 mg/kg, Pb: ≤5 mg/kg, Zn: ≤5 mg/kg

pictograms

Flame over circleCorrosion

signalword

Danger

Hazard Classifications

Eye Dam. 1 - Met. Corr. 1 - 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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Snigdha Shaw et al.
Scientific reports, 10(1), 3458-3458 (2020-02-28)
The underlying mechanism regulating hypoxia induced alteration in female steroid hormones is first time explored in this study. To understand the mechanistic approach, female Sprague- Dawley rats were exposed to acute and chronic hypobaric hypoxia (282 mm-Hg, ~7620 m, 6 hours, 3 and
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
Amanda C Bean et al.
Inorganic chemistry, 44(15), 5209-5211 (2005-07-19)
The hydrothermal reaction of a (239)Pu(IV) stock solution in the presence of iodic acid and 1 M KOH produces reddish-brown single crystals of (PuO(2))(2)(IO(3))(OH)(3). The structure consists of two-dimensional layers forming in the ac plane and is the first single-crystal
Colour reactions of iodic acid as reagent for identifying drugs by thin-layer chromatography.
G Cavazzutti et al.
Journal of chromatography, 268(3), 528-534 (1983-10-07)

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