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Merck

210021

Hydriodic acid

57 wt. % in H2O, distilled, stabilized, 99.95%

Synonym(s):

Hydriotic acid

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About This Item

Empirical Formula (Hill Notation):
HI
CAS Number:
10034-85-2
Molecular Weight:
127.91
NACRES:
NA.21
PubChem Substance ID:
329752070
UNSPSC Code:
12352106
MDL number:
MFCD00011347

Key Documents

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Product Name

Hydriodic acid, 57 wt. % in H2O, distilled, stabilized, 99.95%

InChI

1S/HI/h1H

SMILES string

I

InChI key

XMBWDFGMSWQBCA-UHFFFAOYSA-N

assay

99.95%

form

liquid

contains

<1.5% hypophosphorous acid as stabilizer

concentration

57 wt. % in H2O

bp

127 °C (lit.)

Quality Level

100

solubility

water: soluble

density

1.701 g/mL at 25 °C

storage temp.

2-8°C

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General description

Hydriodic acid is hydrogen iodide gas dissolved in water. It is a strong acid generally used as a reducing agent.
Hydriodic acid (HI) along with red phosphorus (HI/red P) plays the role of a reducing agent for the preparation of methamphetamine. HI/Phosphorous causes the reduction of various polycyclic quinones. HI also participates as a reducing agent for the conversion of various polyarene quinones, hydroquinones and phenols to the corresponding aromatic hydrocarbons.

Application

Hydriodic acid may be used as a reagent for the conversion of fatty alcohols and glyceryl ethers to alkyl iodides.

pictograms

CorrosionEnvironment
GHS05,GHS09

signalword

Danger

Hazard Classifications

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

Storage Class

8B - Non-combustible corrosive hazardous materials

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

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Certificates of Analysis (COA)

Lot/Batch Number
MKCZ6591
MKCX7521
MKCW2840
MKCT7670
MKCR9027

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Studies on the composition of glyceryl ethers and their preparation from diacyl glyceryl ethers in liver oils.
Guyer KE, et al.
Journal of Lipid Research, 4(4), 385-391 (1963)
Chao Chen et al.
Nature communications, 10(1), 1927-1927 (2019-04-28)
Circularly polarized light (CPL) detection is required in various fields such as drug screening, security surveillance and quantum optics. Conventionally, CPL photodetector needs the installation of optical elements, imposing difficulties for integrated and flexible devices. The established CPL detectors without
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)
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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