Barium Hydroxide Octahydrate
| Formula: | Ba(OH)₂·8H₂O |
| CAS Number: | 1304-33-0 |
| EC Number (EINECS): | 215-137-3 |
| HS Code: | 28251000 |
| UN Number: | 1824 |
| IUPAC Name: | Barium Dihydroxide Octahydrate |
| Also Known As: | Barium Hydroxide 8-Hydrate; Barium Hydroxide Octa-hydrate |
| Molecular Weight, g/mol: | 315.46 |
Typical Specifications
| Appearance: | White crystalline solid |
| Odor: | Odorless |
| Melting Point, °C: | 78–81 (loses water, decomposes on further heating) |
| Boiling Point, °C: | Decomposes |
| Density, g/cm³ (at 20°C): | 1.96 |
| Flash Point, °C: | Not applicable |
| pH (1% solution): | Strongly alkaline (~12–13) |
| Purity, %: | ≥99.0 |
| Grades Available: | Technical, Reagent Grade |
| Packaging: | 25kg bags, 50kg drums, 500kg jumbo bags |
Applications / Uses
Primary Applications
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Laboratory reagent for preparation of other barium compounds
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Used in analytical chemistry for titrations and neutralization reactions
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Manufacturing of lubricating oils, greases, and stabilizers
Secondary Applications
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Used as a catalyst in organic synthesis
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Water softening and removal of sulfate ions in industrial processes
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Production of ceramics and glass additives
End Industries Served: Chemicals, Laboratory, Pharmaceuticals, Lubricants, Ceramics, Glass, Water Treatment
Safety & Handling Information
Hazard Class (GHS): Corrosive (Category 1A), Acute Toxicity (oral, Category 4)
Hazard Statements (H-Codes):
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H314: Causes severe skin burns and eye damage
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H302: Harmful if swallowed
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H332: Harmful if inhaled
Precautionary Statements (P-Codes):
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P260: Do not breathe dust/fume
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P264: Wash hands thoroughly after handling
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P280: Wear protective gloves/eye protection
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P301 + P330 + P331: IF SWALLOWED – rinse mouth; do not induce vomiting
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P303 + P361 + P353: IF ON SKIN – remove contaminated clothing; rinse skin with water
Storage Conditions
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Store in tightly closed containers
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Keep in a cool, dry, well-ventilated area
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Protect from moisture and carbon dioxide
Transport Information
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ADR/RID: Class 8, UN1824, PG II
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IMDG: Class 8, UN1824, PG II
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IATA: Class 8, UN1824, PG II
Regulatory Information
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REACH Status (EU): Registered
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FDA Approval: Not approved for food use
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ISO Certification: Available on request (ISO 9001 for manufacturing grade)
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Country Standards: Meets ACS / Reagent grade standards