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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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Synthesis and biocompatibility evaluation of partially fluorinated pyridinium bromides.
Vyas SM, et al.
New. J. Chem., 30(6), 944-951 (2006)
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)
G A Mostafa et al.
Analytical sciences : the international journal of the Japan Society for Analytical Chemistry, 17(10), 1189-1193 (2002-05-07)
A simple, rapid and selective procedure for the indirect spectrophotometric determination of Se(IV) and As(V) has been developed. It is based on the reduction of Se(IV) to Se(0) and As(V) to As(III) with hydroiodic acid (KI + HCl). The liberated
Daniel J Weisenberger et al.
Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology, 24(3), 512-519 (2015-01-15)
The CpG island methylator phenotype (CIMP) represents a subset of colorectal cancers characterized by widespread aberrant DNA hypermethylation at select CpG islands. The risk factors and environmental exposures contributing to etiologic heterogeneity between CIMP and non-CIMP tumors are not known.

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