Skip to main content

Barium hydroxide

ADVERTISEMENT
Identification
Molecular formula
Ba(OH)2
CAS number
17194-00-2
IUPAC name
barium(2+);dihydroxide
State
State

At room temperature, barium hydroxide is a solid. It usually exists in the monohydrate or octahydrate form and is stable under normal conditions.

Melting point (Celsius)
78.00
Melting point (Kelvin)
351.00
Boiling point (Celsius)
780.00
Boiling point (Kelvin)
1 053.00
General information
Molecular weight
171.34g/mol
Molar mass
171.3410g/mol
Density
3.7400g/cm3
Appearence

Barium hydroxide typically appears as a white, granular monohydrate or as a colorless compound in its octahydrate form. It is often odorless and has a crystalline structure. The octahydrate form is the most common.

Comment on solubility

Solubility of Barium Dihydroxide

Barium dihydroxide, represented as Ba(OH)2., showcases a fascinating solubility profile in water and other solvents. Here are some key points about its solubility:

  • Solubility in Water: Barium dihydroxide is moderately soluble in water, with its solubility increasing with temperature. At room temperature, approximately 3.8 g can dissolve in 100 mL of water.
  • Alkaline Solution: The dissolution of barium dihydroxide in water causes the solution to become alkaline due to the presence of hydroxide ions (OH-).
  • Temperature Dependence: As the temperature rises, the solubility of barium dihydroxide tends to increase, suggesting an endothermic dissolution process.
  • Non-solubility in Organic Solvents: Barium dihydroxide is generally insoluble in organic solvents like ethanol and acetone, limiting its application in organic chemistry contexts.

In summary, while barium dihydroxide displays moderate solubility in water, it remains largely insoluble in many organic solvents, demonstrating the intricate relationship between ionic compounds and their solubility profiles in various environments.

Interesting facts

Interesting Facts about Barium (2+) Dihydroxide

Barium (2+) dihydroxide is an intriguing compound with various properties and applications worth exploring. As a chemical scientist or a student studying this compound, you'll find some fascinating aspects to consider:

  • Composition: This compound consists of barium ions paired with two hydroxide ions, highlighting the importance of both metallic and non-metallic components in ionic compounds.
  • Reactivity: Barium dihydroxide is known for its strong basic properties, making it useful in various chemical reactions and processes. It readily reacts with acids to form barium salts and water.
  • Applications: The compound has several practical uses, including:
    • As a precursor in the synthesis of other barium-based compounds.
    • In laboratories for pH regulation due to its strong basic nature.
    • In various industrial processes where alkaline conditions are required.
  • Environmental Considerations: While barium itself is a heavy metal and must be handled with care, barium dihydroxide is less toxic than other barium salts, yet it is still important to follow safety protocols in its handling to prevent environmental contamination.
  • Hydration Dynamics: Understanding the dynamics of hydration for barium ions in aqueous solutions can provide valuable insights into its behavior in biological systems and environmental contexts.

In summary, barium (2+) dihydroxide is a compound that stands out not only for its chemical properties but also for its various applications across different fields. By studying this compound, chemists can unlock new possibilities in material science, pharmaceuticals, and environmental chemistry. As one quote aptly states, "Science knows no boundaries, and every compound tells a unique story."

Synonyms
barium(2+);dihydroxide
Barium Hydroxide (Anhydrous)
Barytwasser
HSDB 1605
EINECS 241-234-5
UNII-1OHB71MYBK
SCHEMBL29350642
Barium hydroxide, LR, >=97%
Barium hydroxide, anhydrous, 94-98%
Barium hydroxide, technical grade, ~95%
EC 241-234-5