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398098

Sigma-Aldrich

Hydriodic acid

contains no stabilizer, ACS reagent, 55%

Synonym(s):

Hydriotic acid

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About This Item

Empirical Formula (Hill Notation):
HI
CAS Number:
Molecular Weight:
127.91
MDL number:
UNSPSC Code:
12352106
PubChem Substance ID:
NACRES:
NA.21

grade

ACS reagent

Quality Level

Assay

55%
55.0-58.0% (ACS specification)

form

liquid

does not contain

stabilizer

impurities

≤0.75% I2

ign. residue

≤0.01%

bp

127 °C (lit.)

density

1.7 g/mL at 25 °C

anion traces

bromide, chloride (as Cl-): ≤0.05%
phosphate (PO43-): ≤0.001%
sulfate (SO42-): ≤0.005%

cation traces

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

storage temp.

2-8°C

SMILES string

I

InChI

1S/HI/h1H

InChI key

XMBWDFGMSWQBCA-UHFFFAOYSA-N

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General description

Hydriodic acid, a strong acid, is hydrogen iodide gas dissolved in water.

Application

Hydriodic acid was used for derivatization of urine samples by iodination to detect aromatic amines using multi-dimensional gas chromatography mass spectrometry (GCxGC-qMS).
It may be used in the following processes:
  • Deiodination process during the synthesis of partially fluorinated pyridinium bromides.
  • As a reducing agent for oxidized graphene nanoribbons (OGN).
  • In combination with red phosphorus to reduce pseudoephedrine in the synthesis of methamphetamine.

Pictograms

CorrosionEnvironment

Signal Word

Danger

Hazard Statements

Hazard Classifications

Aquatic Chronic 2 - Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1B

Storage Class Code

8B - Non-combustible corrosive hazardous materials

WGK

WGK 1

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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Graphite oxide and graphene nanoribbons reduction with hydrogen iodide.
Cataldo F, et al.
Fullerenes, Nanotubes, and Carbon Nanostructures, 19(5), 461-468 (2011)
Patnaik P.
A Comprehensive Guide to the Hazardous Properties of Chemical Substances, 123-123 (2007)
Synthesis and biocompatibility evaluation of partially fluorinated pyridinium bromides.
Vyas SM, et al.
New. J. Chem., 30(6), 944-951 (2006)
Kazumasa Wakamatsu et al.
Pigment cell & melanoma research, 22(4), 474-486 (2009-06-06)
Pheomelanogenesis is a complex pathway that starts with the oxidation of tyrosine (or DOPA, 3,4-dihydroxyphenylalanine) by tyrosinase in the presence of cysteine, which results in the production of 5-S-cysteinyldopa and its isomers. Beyond that step, relatively little has been clarified
Relationships between circulating and intracellular thyroid hormones: physiological and clinical implications.
P R Larsen et al.
Endocrine reviews, 2(1), 87-102 (1981-01-01)

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