Potassium Permanganate

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Potassium permanganate
Identifiers
CAS number 7722-64-7 YesY
PubChem 24400
EC number 231-760-3
UN number 1490
KEGG D02053
RTECS number SD6475000
Properties
Molecular formula KMnO4
Molar mass 158.034 g/mol
Appearance purplish-bronze-gray needles
magenta–rose in solution
Odor odorless
Density 2.703 g/cm3
Melting point

240 °C decomp.

Solubility in water 6.38 g/100 ml (20 °C)
25 g/100 mL (65 °C)
Solubility decomposes in alcohol and organic solvents
Structure
Crystal structure Orthorhombic
Thermochemistry
Std enthalpy of
formation
?fHo298
?813.4 kJ/mol
Standard molar
entropy
So298
171.7 J?K–1?mol–1
Hazards
MSDS External MSDS
EU Index 025-002-00-9
EU classification Oxidant (O)
Harmful (Xn)
Dangerous for the environment (N)
R-phrases R8, R22, R50/53
S-phrases (S2), S60, S61
NFPA 704
NFPA 704.svg
0
2
0
OX
Related compounds
Other anions Potassium manganite
Potassium manganate
Other cations Sodium permanganate
Ammonium permanganate
Related compounds Manganese heptoxide
 YesY (what is this?)  (verify)
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox references

* Source: Wikipedia


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