Barium sulfite
Barium sulfite is an inorganic compound with formula BaSO3.
- 1Names
- 2Formulae and structures
- 3Properties
- 4Constituents
- 5Thermodynamic properties
- 6Solubility
- 7Preparations
- 8Chemical reactions
- 9References
- 10Related substances
- 11Related categories
Names
List of substance names
- Typical name
- Barium sulfite
- Compositional nomenclature
- Barium sulfite
- Additive nomenclature
- Barium trioxidosulfate(2−)
Formulae and structures
List of formulae
- Typical formula
- BaSO3
- Compositional formula
- BaSO3
- Structural formula
- Structural formula with no lone pair
- Other structural formulas
- Lewis structure
- Colored Lewis structure
Properties
List of substance properties
Constituents
Constituent ions
| Ion | Name | Charge number | Number |
|---|---|---|---|
| Ba2+ | Barium ion | 2 | 1 |
| SO32− | Sulfurous ion | -2 | 1 |
Constituent atoms
| Atom | Name | Oxidation state | Number |
|---|---|---|---|
| Ba | Barium | +2 | 1 |
| S | Sulfur | +4 | 1 |
| O | Oxygen | −2 | 3 |
Ratio of atoms
| Atom | Atomic weight | Number | Atomic ratio | Weight ratio |
|---|---|---|---|---|
| Ba | 137.327 | 1 | 20.00% | 63.17% |
| S | 32.06 | 1 | 20.00% | 14.75% |
| O | 15.999 | 3 | 60.00% | 22.08% |
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 |
|---|---|---|---|---|
| Crystalline solid | −1179.5[2] | – | – | – |
Solubility
Qualitative solubility
Solubility in water (g/100 g)[1]
| 0°C |
|---|
| 0.02 |
Solubility curve (g/100 g)
Preparations
Reaction of acid and base
The reaction of sulfurous acid and barium hydroxide yields barium sulfite and water.
Reaction of base and acidic oxide
The reaction of barium hydroxide and sulfur dioxide yields barium sulfite and water.
Reaction of basic oxide and acid
The reaction of barium oxide and sulfurous acid yields barium sulfite and water.
Reaction of basic oxide and acidic oxide
The reaction of barium oxide and sulfur dioxide yields barium sulfite.
Reaction of salt of weak base and strong base
The reaction of salt of weak base and strong base can yield barium sulfite.
Precipitation reaction
When barium ion and sulfurous ion react in aqueous solution, a precipitate of barium sulfite is formed.
Reaction of active metal and acid
The reaction of and acid can yield barium sulfite.
Reaction of nonmetal and hydroxide base
The reaction of and barium hydroxide yields barium sulfite, barium sulfide, and water.
Decomposition
Decomposition of thermally decomposable substance can yield barium sulfite.
Comproportionation
The reaction of hydrogen sulfide and barium sulfate can yield barium sulfite.
Chemical reactions
Electrolytic dissociation
Electrolytic dissociation of barium sulfite yields barium ion and sulfurous ion.
Reaction with strong acid
The reaction of barium sulfite and strong acid yields salt of strong acid and sulfurous acid.
Reaction with nonvolatile acid
The reaction of barium sulfite and nonvolatile acid yields salt of non volatile acid and sulfurous acid.
Reaction with oxidizing species
The reaction of barium sulfite and oxidizing species yields a variety of products.
Reaction with reducible species
The reaction of barium sulfite and reducible species yields a variety of products.
Reaction with reducing species
The reaction of reducing species and barium sulfite yields a variety of products.
Decomposition
Decomposition of barium sulfite yields barium oxide and sulfur dioxide.
References
List of references
- 1James G. Speight (2017)Lange's Handbook of Chemistry, 17th editionMcGraw Hill Education
- 2Janiel 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)
