261963
Perrhenic acid solution
75-80 wt. % in H2O, liquid
Synonym(s):
Hydrogen perrhenate, Hydrogen tetraoxorhenate
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About This Item
Linear Formula:
HReO4
CAS Number:
Molecular Weight:
251.21
UNSPSC Code:
12161600
PubChem Substance ID:
NACRES:
NA.22
MDL number:
Product Name
Perrhenic acid solution, 75-80 wt. % in H2O
form
liquid
Quality Segment
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
Application
- 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.
It is also used to prepare highly conducting and superconducting synthetic metals.
Signal Word
Danger
Hazard Codes
Precautionary Statements
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
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