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Barium Hydroxide is a strong inorganic base used in a variety of chemical, industrial, laboratory, and manufacturing applications. It is commonly available as Barium Hydroxide Octahydrate [Ba(OH)₂·8H₂O] and, in some applications, as anhydrous Barium Hydroxide.
Its strong alkalinity and ability to react with acids and sulfate-containing compounds make it a useful chemical for chemical synthesis, wastewater treatment, industrial processing, and specialty chemical manufacturing.
Barium hydroxide has the molecular formula of Ba(OH)2 and the molecular weight of 121.6324 g/mol. It occurs as an anhydrate whose prismatic, colorless crystals are very deliquescent. Barium hydroxide can be prepared by dissolving barium oxide
Barium Hydroxide is an inorganic compound consisting of barium, oxygen, and hydrogen. The octahydrate form is generally supplied as a white crystalline solid.
Chemical formula: Ba(OH)₂
Common hydrated form: Ba(OH)₂·8H₂O
CAS No. (octahydrate): 12230-71-6
Barium Hydroxide produces a strongly alkaline solution in water and can neutralize acids effectively.
Strong alkaline compound
Reacts readily with acids
Forms insoluble barium sulfate with sulfate ions
Available in hydrated and anhydrous forms
Useful as a chemical reagent and synthesis intermediate
Suitable for selected industrial and laboratory applications
Barium Hydroxide Octahydrate is one of the most commonly supplied commercial forms. It contains eight molecules of water of crystallization.
The octahydrate should not be substituted directly on a weight-for-weight basis for anhydrous Barium Hydroxide because their molecular weights and active Ba(OH)₂ content differ.
1. Chemical Manufacturing
Barium Hydroxide is used as a raw material and reagent for producing various barium compounds and specialty chemicals.
2. Esterification and Organic Synthesis
It can be used as a strong base in selected chemical reactions, including hydrolysis and esterification-related processes.
3. Sulfate Removal
Barium Hydroxide reacts with sulfate ions to form insoluble Barium Sulfate (BaSO₄). This property can be utilized in specific chemical-treatment processes where sulfate precipitation is required.
4. Water and Wastewater Treatment
In controlled industrial applications, Barium Hydroxide can be used for pH adjustment and precipitation of selected anions. Treatment chemistry must be carefully designed because soluble barium compounds require appropriate containment and management.
5. Petroleum and Industrial Applications
Barium compounds have applications across petroleum-related and industrial chemical processes. Specific use of Barium Hydroxide depends on the process chemistry and required specifications.
6. Lubricating Greases
Barium compounds have historically been used in the manufacture of certain specialty lubricating greases and related formulations.
7. Laboratory Applications
Barium Hydroxide is used as a chemical reagent for analytical and research purposes, particularly where a strong alkaline medium is required.
When sourcing Barium Hydroxide, industrial buyers should confirm:
Anhydrous or octahydrate grade
Purity
Particle size
Technical or laboratory grade
Packaging
Certificate of Analysis (COA)
Safety Data Sheet (SDS)
Batch consistency
Application requirements
A reliable chemical supplier should provide appropriate technical documentation and handling information.
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