261963

Perrhenic acid solution

75-80 wt. % in H2O, liquid

• Synonym(s): Hydrogen perrhenate, Hydrogen tetraoxorhenate
• Linear Formula: HReO₄
• CAS Number: 13768-11-1
• Molecular Weight: 251.21
• UNSPSC Code: 12161600
• PubChem Substance ID: 24855847
• NACRES: NA.22
• MDL number: MFCD00011326

Properties

• Product Name: Perrhenic acid solution, 75-80 wt. % in H₂O
• form: liquid
• Quality Segment: 100
• reaction suitability: core: rhenium, reagent type: catalyst
• concentration: 75-80 wt. % in H₂O
• density: 2.16 g/mL at 25 °C
• SMILES string: O[Re](=O)(=O)=O
• InChI: 1S/H2O.3O.Re/h1H2;;;;/q;;;;+1/p-1
• InChI key: UGSFIVDHFJJCBJ-UHFFFAOYSA-M

Description

Application

It is also used to prepare highly conducting and superconducting synthetic metals.

• Perrhenic acid solution (HReO₄) can be used in dehydrations of oximes, amides, and urea.
• HReO₄ can also catalyze azeotropic dehydration of syn- or anti-aldoximes to yield corresponding nitriles.
• In combination with tertiary arsines, it gives a versatile catalytic system for epoxidation of alkenes with hydrogen peroxide.

Safety Information

• Pictograms: GHS05
• Signal Word: Danger
• Hazard Codes: H314
• Precautionary Statements: P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338 - P363 - P405
• Hazard Classifications: Eye Dam. 1 - Skin Corr. 1B
• Storage Class: 8A - Combustible corrosive hazardous materials
• WGK: WGK 1
• Flash Point (°F): Not applicable
• Flash Point (°C): Not applicable