210021

Hydriodic acid

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

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

Properties

• Quality Level: 100
• assay: 99.95%
• form: liquid
• contains: <1.5% hypophosphorous acid as stabilizer
• concentration: 57 wt. % in H₂O
• bp: 127 °C (lit.)
• density: 1.701 g/mL at 25 °C
• storage temp.: 2-8°C
• SMILES string: I
• InChI: 1S/HI/h1H
• InChI key: XMBWDFGMSWQBCA-UHFFFAOYSA-N

Description

General description

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.

Hydriodic acid is hydrogen iodide gas dissolved in water. It is a strong acid generally used as a reducing agent.

Application

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

Safety Information

• pictograms: GHS05,GHS09
• signalword: Danger
• hcodes: H290,H314,H411
• pcodes: P234 - P273 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338
• Hazard Classifications: Aquatic Chronic 2 - Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1B
• Storage Class: 8B - Non-combustible corrosive hazardous materials
• wgk_germany: WGK 1
• flash_point_f: Not applicable
• flash_point_c: Not applicable