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210021 Sigma-Aldrich

Hydriodic acid

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

Synonym: Hydriotic acid

  • CAS Number 10034-85-2

  • Empirical Formula (Hill Notation) HI

  • Molecular Weight 127.91

  •  MDL number MFCD00011347

  •  PubChem Substance ID 329752070

  •  NACRES NA.21

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Properties

Related Categories Acids, Acids & Bases, Alternative Energy, Chemical Synthesis, Halide Sources,
Quality Level   100
assay   99.95%
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.

Packaging

50, 250 mL in glass bottle

Safety & Documentation

Safety Information

Symbol 
GHS05  GHS05
Signal word 
Danger
Hazard statements 
Precautionary statements 
RIDADR 
UN 1787 8 / PGII
WGK Germany 
WGK 3
Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable
Protocols & Articles

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