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Merck

210021

Hydriodic acid

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

Synonym(s):

Hydriotic acid

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¥21,400

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About This Item

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

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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

solubility

water: soluble

density

1.701 g/mL at 25 °C

storage temp.

2-8°C

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1 of 4

This Item
210013398098752851
concentration

57 wt. % in H2O

concentration

57 wt. % in H2O

concentration

-

concentration

57 wt. %

assay

99.95%

assay

99.99% trace metals basis

assay

55%, 55.0-58.0% (ACS specification)

assay

99.999% trace metals basis

Quality Level

100

Quality Level

100

Quality Level

100

Quality Level

100

form

liquid

form

liquid

form

liquid

form

liquid

storage temp.

2-8°C

storage temp.

room temp

storage temp.

2-8°C

storage temp.

2-8°C

bp

127 °C (lit.)

bp

127 °C (lit.)

bp

127 °C (lit.)

bp

127 °C (lit.)

General description

Hydriodic acid is hydrogen iodide gas dissolved in water. It is a strong acid generally used as a reducing agent.[1]
Hydriodic acid (HI) along with red phosphorus (HI/red P) plays the role of a reducing agent for the preparation of methamphetamine.[2] HI/Phosphorous causes the reduction of various polycyclic quinones.[3] HI also participates as a reducing agent for the conversion of various polyarene quinones, hydroquinones and phenols to the corresponding aromatic hydrocarbons.[3]

Application

Hydriodic acid may be used as a reagent for the conversion of fatty alcohols and glyceryl ethers to alkyl iodides.[1]

pictograms

CorrosionEnvironment

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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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
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)
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)
Methamphetamine synthesis via hydriodic acid/red phosphorus reduction of ephedrine.
Skinner HF.
Forensic Science International, 48(2), 123-134 (1990)
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

Questions

1–2 of 2 Questions  
  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer
    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/418/501/product-dating-information-06-25-mk.pdf

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer
    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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