Sodium permanganate
Sodium permanganate is an inorganic compound with formula NaMnO4.
- 1Names
- 2Formulae and structures
- 3Properties
- 4Constituents
- 5Thermodynamic properties
- 6Solubility
- 7Preparations
- 8Chemical reactions
- 9References
- 10Related substances
- 11Related categories
Names
List of substance names
- Typical name
- Sodium permanganate
- Compositional nomenclature
- Sodium permanganate
- Additive nomenclature
- Sodium tetraoxidomanganate(1−)
- Other names
- Sodium manganate(VII)
Formulae and structures
List of formulae
- Typical formula
- NaMnO4
- Compositional formula
- NaMnO4
- Structural formula
- Other structural formulas
- Lewis structure
- Colored Lewis structure
Properties
List of substance properties
- Name
- Sodium permanganate
- Formula
- NaMnO4
- Appearance
- Black purple solid
- Odor
- Odorless
- Molar mass
- 141.924 g/mol
- Density
- –
- Melting point
- –
- Boiling point
- –
Constituents
Constituent ions
| Ion | Name | Charge number | Number |
|---|---|---|---|
| Na+ | Sodium ion | 1 | 1 |
| MnO4− | Permanganate ion | -1 | 1 |
Constituent atoms
| Atom | Name | Oxidation state | Number |
|---|---|---|---|
| Na | Sodium | +1 | 1 |
| Mn | Mangenese | +7 | 1 |
| O | Oxygen | −2 | 4 |
Ratio of atoms
| Atom | Atomic weight | Number | Atomic ratio | Weight ratio |
|---|---|---|---|---|
| Na | 22.990 | 1 | 16.67% | 16.20% |
| Mn | 54.938 | 1 | 16.67% | 38.71% |
| O | 15.999 | 4 | 66.67% | 45.09% |
Thermodynamic properties
Phase transition properties
- Enthalpy of fusion
- –
- Enthalpy of vaporization
- –
- Enthalpy of vaporization at 25°C
- –
- Enthalpy of other transition
- –
Standard thermodynamic properties
State | Standard enthalpy of formation ΔfH° kJ · mol−1 | Standard Gibbs energy of formation ΔfG° kJ · mol−1 | Standard molar entropy S° J · K−1 · mol−1 | Standard molar heat capacity at constant pressure Cp° J · K−1 · mol−1 |
|---|---|---|---|---|
| Ionized aqueous solution | −781.6[1] | −709.1[1] | 250.2[1] | – |
| Crystalline solid 1 hydrate | −1079.14[1] | – | – | – |
| Crystalline solid 3 hydrate | −1672.85[1] | – | – | – |
Solubility
Qualitative solubility
Preparations
Reaction of acid and base
The reaction of permanganic acid and sodium hydroxide yields sodium permanganate and water.
Reaction of base and acidic oxide
The reaction of sodium hydroxide and manganese(VII) oxide yields sodium permanganate and water.
Reaction of basic oxide and acid
The reaction of sodium oxide and permanganic acid yields sodium permanganate and water.
Reaction of basic oxide and acidic oxide
The reaction of sodium oxide and manganese(VII) oxide yields sodium permanganate.
Reaction of salt of weak acid and strong acid
The reaction of salt of weak acid and strong acid can yield sodium permanganate.
Reaction of salt of weak base and strong base
The reaction of salt of weak base and strong base can yield sodium permanganate.
Decomposition
Decomposition of thermally decomposable substance can yield sodium permanganate.
Chemical reactions
Electrolytic dissociation
Electrolytic dissociation of sodium permanganate yields sodium ion and permanganate ion.
Reaction with dehydrating acid
The reaction of sodium permanganate and dehydrating acid yields salt, manganese(VII) oxide, and water.
Reaction with reducing species
The reaction of reducing species and sodium permanganate yields a variety of products.
Reaction with oxidizable species
The reaction of oxidizable species and sodium permanganate yields a variety of products.
Reaction with oxidizable species under acidic condition
The reaction of oxidizable species, sodium permanganate, and hydrogen ion yields a variety of products.
Reaction with oxidizable species under neutral condition
The reaction of oxidizable species, sodium permanganate, and water yields a variety of products.
Reaction with hardly oxidizable species
The reaction of hardly oxidizable species and sodium permanganate yields a variety of products.
Reaction with hardly oxidizable species under acidic condition
The reaction of hardly oxidizable species, sodium permanganate, and hydrogen ion yields a variety of products.
Reaction with hardly oxidizable species under neutral condition
The reaction of hardly oxidizable species, sodium permanganate, and water yields a variety of products.
Precipitation reaction
When a certain chemical species is present in aqueous solution, it reacts with sodium permanganate to form a precipitate.
Electrolysis of aqueous solution
Electrolysis of aqueous sodium permanganate yields a variety of products.
Decomposition
Decomposition of sodium permanganate yields a variety of products.
References
List of references
- 1Janiel J. Reed (1989)The NBS Tables of Chemical Thermodynamic Properties: Selected Values for Inorganic and C1 and C2 Organic Substances in SI UnitsNational Institute of Standards and Technology (NIST)
