Description
Ammonium perrhenate (APR) is the ammonium salt of perrhenic acid, NH4ReO4. It is the most common form in which rhenium is traded. It is a white, water-soluble salt. It was first described soon after the discovery of rhenium.
Synonyms
Ammonium rhenium oxide
IUPAC Name
Azanium;oxido(trioxo)rhenium
Molecular Weight
268.24
Molecular Formula
H4NO4Re
Canonical SMILES
[NH4+].[O-][Re](=O)(=O)=O
InChI
InChI=1S/H3N.4O.Re/h1H3;/q;-1;/p+1
InChI Key
HOJYZCWLNWENHS-UHFFFAOYSA-O
Melting Point
365 °C
Purity
99%+
Density
3.97 g/mL at 25 °C (lit.)
Appearance
White powder
Complexity
95.8
Covalently-Bonded Unit Count
2
Defined Atom Stereocenter Count
0
EC Number
237-075-6
Exact Mass
268.969785
Formal Charge
0
H-Bond Acceptor
4
H-Bond Donor
1
Heavy Atom Count
6
LogP
-0.20930
MDL Number
MFCD00012377
Monoisotopic Mass
268.969785
Rotatable Bond Count
0
Stability
Stable at room temperature in closed containers under normal storage and handling conditions.
Topological Polar Surface Area
75.3 Ų
