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Barium Hydroxide Extra Pure is an inorganic alkaline compound used in analytical chemistry, acid–base investigations, and selected chemical preparation procedures. Commonly supplied as Barium Hydroxide Octahydrate, it has the formula Ba(OH)₂·8H₂O and consists of barium ions, hydroxide ions, and water of crystallization. The octahydrate is a white crystalline solid that dissolves in water to form a strongly alkaline solution. Its basic properties make it useful for neutralization studies, titrations, and investigations involving hydroxide chemistry. Laboratories should distinguish the hydrated form from anhydrous Barium Hydroxide because their formula masses differ and affect solution calculations. This Extra Pure grade is intended for appropriate laboratory applications, subject to the product’s actual specifications. Because Barium Hydroxide is corrosive and barium compounds can be harmful if swallowed, careful handling and suitable protective measures are essential.
Product Specifications
| Specification | Details |
|---|---|
| Appearance | White crystalline solid |
| Assay | 99% |
| Chemical Name | Barium Hydroxide Octahydrate |
| Alternate Names | Barium Hydrate, Barium Dihydroxide Octahydrate |
| Molecular Formula | Ba(OH)₂·8H₂O |
| Empirical Formula | BaH₁₈O₁₀ |
| CAS Number | 12230-71-6 |
| Molecular Weight | 315.46 g/mol |
| Grade | LR Laboratory Reagent |
Key Features of Barium Hydroxide Extra Pure
- Strong alkaline character: Barium Hydroxide produces strongly alkaline aqueous solutions suitable for selected acid–base chemistry investigations.
- Defined hydrated composition: The octahydrate contains eight water molecules per formula unit, which must be considered in molar-mass calculations.
- Water solubility: Its solubility supports preparation of aqueous reagent solutions for appropriate laboratory procedures.
- Analytical chemistry relevance: Its basic properties make it useful in suitable neutralization experiments and acid–base titration procedures.
- Recognizable physical form: The octahydrate is a white crystalline solid that can be identified using its physical characteristics alongside appropriate chemical documentation.
Laboratory Applications of Barium Hydroxide Extra Pure
- Acid–base titrations: Used in appropriate analytical procedures involving the neutralization of acids, provided the reagent’s specifications meet the method requirements.
- Neutralization experiments: Supports supervised investigations of reactions between strong bases and acidic solutions in suitably equipped laboratories.
- Qualitative inorganic analysis: May be used in selected experiments involving hydroxide chemistry and reactions of barium ions with compatible reagents.
- Chemical preparation: Used in selected laboratory preparations requiring a soluble barium hydroxide reagent, subject to chemical compatibility and safety requirements.
- University and research investigations: Relevant to controlled studies of alkaline reactions and inorganic compound behaviour where the octahydrate form is appropriate.
Why Choose Lab Wale to Buy Barium Hydroxide Extra Pure
Lab Wale provides a sourcing option for laboratory chemicals and scientific supplies used by schools, colleges, universities, research centres, and laboratory professionals. When purchasing Barium Hydroxide Extra Pure, laboratories should verify the chemical form, stated assay, grade, CAS number, and applicable safety information to ensure suitability for the intended procedure. Checking the hydration state is especially important for accurate molar calculations and solution preparation. Appropriate selection and handling support responsible laboratory procurement and chemical management.
Frequently Asked Questions About Barium Hydroxide Extra Pure
What is Barium Hydroxide Extra Pure used for in laboratories?
Barium Hydroxide is used in suitable acid–base titrations, neutralization experiments, inorganic chemistry investigations, and selected chemical preparation procedures. Its strongly alkaline behaviour makes it useful for controlled laboratory studies. Applications should be selected according to the reagent’s specifications, the experimental method, and the laboratory’s safety requirements.
What is the molecular formula of Barium Hydroxide Octahydrate?
The molecular formula of Barium Hydroxide Octahydrate is Ba(OH)₂·8H₂O, and its molecular weight is approximately 315.46 g/mol. The empirical formula is BaH₁₈O₁₀. Anhydrous Barium Hydroxide has the formula Ba(OH)₂ and a lower formula mass, so the two forms are not interchangeable in mass-based calculations.
What is the CAS number of Barium Hydroxide Extra Pure?
The CAS Registry Number for Barium Hydroxide Octahydrate is 12230-71-6. The anhydrous compound has a different CAS number, 17194-00-2. Confirming the hydration state helps ensure that laboratory purchasing, labeling, inventory records, and experimental calculations correspond to the intended chemical form.
Is Barium Hydroxide Extra Pure suitable for educational and research laboratories?
It may be suitable for selected college, university, and research laboratory procedures when the chemical form and specifications match the application. However, Barium Hydroxide is corrosive and barium compounds can present significant health hazards. Use requires trained supervision, suitable protective equipment, and appropriate chemical-handling and waste-management procedures.
How should Barium Hydroxide Extra Pure be stored and handled safely?
Store the material in a tightly closed, compatible container, protected from moisture and atmospheric carbon dioxide. Wear chemical-resistant gloves, protective clothing, and safety goggles, and avoid generating or inhaling dust. Prevent contact with skin and eyes, and follow the current Safety Data Sheet and institutional procedures for spills and hazardous-waste disposal.
Storage Conditions for Barium Hydroxide Extra Pure
Store Barium Hydroxide Octahydrate in a tightly closed, compatible, clearly labeled container in a cool, dry, well-ventilated area. Protect it from moisture and atmospheric carbon dioxide, which can alter the material through carbonate formation. Keep it segregated from acids and incompatible substances. Follow the current Safety Data Sheet for product-specific storage requirements and ensure access is restricted to authorized personnel.
Precautions for Handling Barium Hydroxide Extra Pure
Review the current Safety Data Sheet before use. Wear suitable chemical-resistant gloves, protective clothing, and chemical safety goggles or a face shield where required. Avoid inhaling dust and prevent skin and eye contact. Handle the material with appropriate ventilation, and avoid contact with acids or incompatible chemicals outside approved procedures. Prevent environmental release and follow institutional spill-response, emergency, and hazardous-waste disposal requirements because barium-containing waste must not enter ordinary drains.


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