248649

Hydriodic acid

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

• 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: 329752753
• NACRES: NA.21

Properties

• 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 (SO₄^2-): ≤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

Description

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

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