Skip to Content
MilliporeSigma
All Photos(3)

Documents

248649

Sigma-Aldrich

Hydriodic acid

contains ≤1.5% hypophosphorous acid as stabilizer, ACS reagent, ≥47.0%

Synonym(s):

Hydriotic acid

Sign Into View Organizational & Contract Pricing
All Photos(3)

About This Item

Empirical Formula (Hill Notation):
HI
CAS Number:
10034-85-2
Molecular Weight:
127.91
MDL number:
MFCD00011347
UNSPSC Code:
12352106
PubChem Substance ID:
329752753
NACRES:
NA.21

grade

ACS reagent

Quality Level

200

form

liquid

contains

≤1.5% hypophosphorous acid as stabilizer

concentration

≥47.0%

bp

127 °C (lit.)

density

1.5 g/mL at 25 °C

anion traces

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

cation traces

Fe: ≤0.001%
heavy metals: ≤0.001%

storage temp.

2-8°C

SMILES string

I

InChI

1S/HI/h1H

InChI key

XMBWDFGMSWQBCA-UHFFFAOYSA-N

Looking for similar products? Visit Product Comparison Guide

Related Categories

Application

Hydriodic acid is a solution of hydrogen iodide in water. It is a strong acid. It is commonly used as a reagent in various reactions such as:
  • electrophilic hydriodination of alkenes and alkynes
  • cleavage of epoxides, ethers, and acetals; conversion of alcohols to iodides   
  • reducing agent for many groups including quinones, α-diketones, α-ketols, α-halo ketones, α-diazo ketones, and sulfoxides      
  • reductive cyclization of keto acids

Hydriodic acid (hypophosphorus acid as a stabilizer) can be used for the fabrication of benzylammonium hybrid layered metal-halide perovskites for spintronic and nonlinear optical applications

pictograms

CorrosionEnvironment
GHS05,GHS09

signalword

Danger

Hazard Classifications

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

wgk_germany

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’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Customers Also Viewed

Slide 1 of 5

1 of 5

2-Iodopropane contains copper as stabilizer, 99%

Sigma-Aldrich

148938

2-Iodopropane

4-(Aminomethyl)pyridine 98%

Sigma-Aldrich

A65603

4-(Aminomethyl)pyridine

Hydrobromic acid ACS reagent, 48%

Sigma-Aldrich

244260

Hydrobromic acid

Melamine 99%

Sigma-Aldrich

M2659

Melamine

Hydroxylamine hydrochloride ReagentPlus®, 99%

Sigma-Aldrich

159417

Hydroxylamine hydrochloride

Siegfried Eigler et al.
Chemical communications (Cambridge, England), 49(67), 7391-7393 (2013-07-19)
The efficiency of reducing agents for the reduction of graphene oxide (GO) could be probed by scanning Raman spectroscopy. A film of graphene flakes derived from GO was probed to be graphene like. We also focus on the surface quality
Viscosities of aqueous hydrochloric acid solutions, and densities and viscosities of aqueous hydroiodic acid solutions.
Nishikata E, et al.
Journal of Chemical and Engineering Data, 26(3), 254-256 (1981)
Efficient reduction of polycyclic quinones, hydroquinones, and phenols with hydriodic acid.
Konieczny M and Harvey RG.
The Journal of Organic Chemistry, 44(26), 4813-4816 (1979)
S Ito et al.
Pigment cell research, 11(2), 120-126 (1998-05-19)
Melanocytes produce two chemically distinct types of melanin pigments, eumelanins and pheomelanins. These pigments can be quantitatively analyzed by acidic KMnO4 oxidation or reductive hydrolysis with hydriodic acid (HI) to form pyrrole-2,3,5-tricarboxylic acid (PTCA) or aminohydroxyphenylalanine (AHP), respectively. Dark brown
Hailong Li et al.
Journal of agricultural and food chemistry, 60(21), 5307-5310 (2012-05-15)
The paper reports on a headspace gas chromatographic (HS-GC) method for the determination of methoxyl in lignin. The method involves the quantitive cleavage of methoxyl with hydroiodic acid (HI) to form methyl iodide in a closed headspace sample vial at
View All Related Papers

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service