Platinum(IV) hydroxide
Platinum(IV) hydroxide is an inorganic compound with formula Pt(OH)4.
- 1Names
- 2Formulae and structures
- 3Properties
- 4Constituents
- 5Thermodynamic properties
- 6Solubility
- 7Preparations
- 8Chemical reactions
- 9Related substances
- 10Related categories
Names
List of substance names
- Typical name
- Platinum(IV) hydroxide
- Compositional nomenclature
- Platinum(IV) hydroxide
- Platinum(IV) tetrahydroxide
- Substitutive nomenclature
- Platinum(IV) oxidanide
- Additive nomenclature
- Platinum(4+) hydridooxygenate(1−)
- Hydrogen nomenclature
- Platinum(4+) hydrogen(oxide)(1−)
- Other names
- Platinic hydroxide
- Platinic acid
Formulae and structures
List of formulae
- Typical formula
- Pt(OH)4
- Compositional formula
- Pt(OH)4
- Structural formula
- Lewis structure
- Colored Lewis structure
Properties
List of substance properties
- Name
- Platinum(IV) hydroxide
- Formula
- Pt(OH)4
- Appearance
- Black solid
- Odor
- Odorless
- Molar mass
- 263.112 g/mol
- Density
- –
- Melting point
- Decompose→ PtO2, H2O
- Boiling point
- –
Constituents
Constituent ions
| Ion | Name | Charge number | Number |
|---|---|---|---|
| Pt4+ | Platinum(IV) ion | 4 | 1 |
| OH− | Hydroxide ion | -1 | 4 |
Constituent atoms
| Atom | Name | Oxidation state | Number |
|---|---|---|---|
| Pt | Platinum | +4 | 1 |
| O | Oxygen | −2 | 4 |
| H | Hydrogen | +1 | 4 |
Ratio of atoms
| Atom | Atomic weight | Number | Atomic ratio | Weight ratio |
|---|---|---|---|---|
| Pt | 195.084 | 1 | 11.11% | 74.14% |
| O | 15.999 | 4 | 44.44% | 24.32% |
| H | 1.008 | 4 | 44.44% | 1.53% |
Thermodynamic properties
Phase transition properties
- Enthalpy of fusion
- –
- Enthalpy of vaporization
- –
- Enthalpy of vaporization at 25°C
- –
- Enthalpy of other transition
- –
Solubility
Qualitative solubility
Preparations
Reaction of basic oxide and water
The reaction of platinum(IV) oxide and water yields platinum(IV) hydroxide.
Reaction of salt of weak base and strong base
The reaction of salt of weak base and strong base can yield platinum(IV) hydroxide.
Electrolytic dissociation
Electrolytic dissociation of hexahydroxidoplatinate(II) ion yields platinum(IV) hydroxide and hydroxide ion.
Chemical reactions
Reaction with acid
The reaction of acid and platinum(IV) hydroxide yields platinum(IV) chloride and water.
Reaction with salt of volatile base
The reaction of ammonium chloride and platinum(IV) hydroxide yields platinum(IV) chloride, ammonia, and water.
Reaction with dehydrating basic oxide
The reaction of platinum(IV) hydroxide and dehydrating basic oxide yields platinum(IV) oxide and hydroxide base.
Reaction with anion
The reaction of platinum(IV) hydroxide and hydroxide ion yields hexahydroxidoplatinate(II) ion.
Reaction with self-redoxing species
The reaction of self-redoxing species and platinum(IV) hydroxide yields a variety of products.
Reaction with reducing species
The reaction of reducing species and platinum(IV) hydroxide yields a variety of products.
Reaction with oxidizable species
The reaction of oxidizable species and platinum(IV) hydroxide yields a variety of products.
Reaction with oxidizable species under neutral condition
The reaction of iron(II) oxide, platinum(IV) hydroxide, and water yields iron(III) hydroxide and .
Reaction with oxidizing species
The reaction of platinum(IV) hydroxide and yields platinum(IV) oxide and .
Reaction with hardly oxidizable species
The reaction of hardly oxidizable species and platinum(IV) hydroxide yields a variety of products.
Decomposition
Decomposition of platinum(IV) hydroxide yields platinum(IV) oxide and water.
