Barium Hydroxide Hydrate Extra Pure

Whatsapp Order

SHORT DESCRIPTION

Barium Hydroxide 8-Hydrate Extra Pure is a high-purity, white crystalline compound containing eight molecules of water of crystallization. It is widely used in laboratory chemistry as a strong base in titration, qualitative analysis, and inorganic synthesis. Its high solubility in water and strong alkalinity make it valuable for neutralization reactions, preparation of barium salts, and as a reagent for detecting sulfates, carbonates, and phosphates. In analytical applications, it is often used where precise pH control and minimal contamination are critical. The extra pure grade ensures consistent performance in high-accuracy experiments. It should be handled with care and stored in a tightly sealed container in a cool, dry place, as it is caustic and sensitive to carbon dioxide in the air, which can lead to carbonate formation.

Add to compare

Add to wishlist

Categories: Analytical Reagents, Inorganic and Organic Standards Tags: AlkalinityTest, AnalyticalReagent, BariumHydroxide, CO2Absorption, HighPurityBaOH2, InorganicStandard, StrongBase, TitrationBase

Description

USES

Primary Uses

Strong Alkali for Acid–Base Titrations
- Functions as a standard strong base, like NaOH or KOH, particularly useful in titrations where sodium contamination must be avoided (e.g., gravimetric sulfate analysis).
Reagent for Sulfate Ion Determination
- Used to precipitate barium sulfate (BaSO₄) from solutions containing SO₄²⁻ — ideal for gravimetric sulfate analysis in water or fertilizers.
Alkalizing Agent in Chemical Reactions
- Provides a high pH environment for hydrolysis, saponification, or other base-catalyzed reactions.
Carbon Dioxide Absorbent in Gas Analysis
- Reacts with CO₂ to form insoluble barium carbonate — used in gas detection and quantitative CO₂ absorption studies.
Preparation of Other Barium Compounds
- Acts as a precursor for the lab-scale synthesis of barium salts, such as BaCl₂, Ba(NO₃)₂, and Ba(CH₃COO)₂, through neutralization with appropriate acids.

Secondary Uses

Educational Demonstrations of Strong Base Behavior
- A non-sodium hydroxide alternative for demonstrating alkali metal reactivity, hydroxide solubility, and exothermic dissolution.
Use in Analytical Chemistry for Weak Acid Titration
- Employed in titrating weak organic acids, such as acetic or oxalic acid, in biochemical or food chemistry contexts.
Study of Crystallization and Hydrate Behavior
- Serves as a model for studying hydrated salt structure, deliquescence, and thermal decomposition in physical chemistry labs.
Reagent in Organic Chemistry Reactions
- Occasionally used in aldol condensations, eliminations, or saponification reactions where a solid, less hygroscopic base is desired.
Base in Specialized Metal Precipitation Reactions

Employed in selective precipitation of transition metals or amphoteric hydroxides, depending on pH and ionic strength.

Product Key Features

KEY ATTRIBUTES

1. Basic Identification Attributes

Chemical Name: Barium Hydroxide Octahydrate
CAS Number: 12230-71-6
HS Code: 28164000 (Barium hydroxide)
Molecular Formula: Ba(OH)₂ · 8H₂O
Synonyms:
- Barium hydrate
- Barium hydroxide 8H₂O
- Barium dihydroxide octahydrate
- Caustic baryta

2. Physical & Chemical Properties

Physical State: Solid (crystalline flakes or granules)
Color & Odor: White; odorless
Boiling Point: Decomposes before boiling
Melting Point: ~78 °C (loses water of hydration)
Density/Specific Gravity: ~2.18 g/cm³
Solubility:
- Water: Soluble (~5.6 g/100 mL at 20 °C)
- Alcohol: Insoluble
pH Level: Strongly alkaline (~pH 12–13 in solution)
Vapor Pressure: Negligible
Flash Point: Not flammable
Autoignition Temperature: Not applicable
Viscosity: Not applicable

3. Safety & Hazard Attributes

Hazard Class (GHS):
- Skin Corrosion/Irritation (Category 1A)
- Serious Eye Damage (Category 1)
- Acute Toxicity – Oral (Category 4)
NFPA Ratings:
- Health: 3
- Flammability: 0
- Reactivity: 1
Exposure Limits:
- OSHA PEL (as soluble barium compounds): 0.5 mg/m³
- ACGIH TLV: 0.5 mg/m³ (as Ba)
Reactivity:
- Reacts vigorously with acids
- Reacts with CO₂ to form insoluble barium carbonate

4. Storage & Handling Attributes

Storage Conditions:
- Store in tightly closed containers, in a dry, cool place
- Hygroscopic – avoid exposure to moisture and air
Incompatible Materials:
- Acids, carbon dioxide, moisture
Container Type:
- Polyethylene or amber glass container
Shelf Life & Expiration Date:
- ~2 years if stored sealed and dry
Special Handling Requirements:
- Use gloves, goggles, lab coat
- Always handle in a fume hood to avoid dust inhalation

5. Regulatory & Compliance Attributes (Lab-grade use)

Regulatory Status:
- Listed in TSCA, REACH
- Subject to regulation due to toxicity of soluble barium
Transportation Restrictions:
- Not classified as hazardous for transport in small quantities
Waste Disposal Method:
- Treat as hazardous waste
- Neutralize before disposal if permitted; otherwise, use a licensed disposal agent

6. Environmental & Health Impact

Ecotoxicity:
- Toxic to aquatic life due to barium ion release
Persistence in Environment:
- Inorganic; converts to barium carbonate in CO₂-rich environments
Carcinogenicity/Mutagenicity:
- Not classified as carcinogenic
Biodegradability:
- Not biodegradable

Safety Handling Precautions

SAFETY PRECAUTIONS

Personal Protective Equipment (PPE):
- Wear a lab coat, nitrile gloves, and chemical splash goggles.
- Use face protection for large volumes or where splashing is possible.
- Handle inside a fume hood to prevent dust exposure.
Handling:
- Avoid inhalation of dust and contact with skin, eyes, or clothing.
- Do not mix with acids—reaction releases heat and may form toxic barium salts.
- Always add solid slowly to water—exothermic reaction may cause splattering.
Storage:
- Store in a tightly closed container in a cool, dry, and well-ventilated area.
- Keep away from moisture, acids, and carbon dioxide (CO₂) to avoid degradation.
- Clearly label as Toxic and Corrosive.
Hygiene Measures:
- Wash hands thoroughly after handling.
- Clean surfaces with water and appropriate neutralizers after use.
- Do not eat, drink, or smoke while handling the product.

FIRST AID MEASURES

Inhalation:
- Move the person to fresh air immediately.
- Provide oxygen if breathing is difficult.
- Seek immediate medical attention—dust is irritating and can cause respiratory distress.
Skin Contact:
- Rinse thoroughly with plenty of water for at least 15 minutes.
- Remove contaminated clothing.
- Seek medical attention for burns or prolonged irritation—caustic to skin.
Eye Contact:
- Flush eyes with copious water for at least 15 minutes, lifting eyelids.
- Remove contact lenses if present.
- Seek urgent medical attention—may cause severe eye damage.
Ingestion:
- Do not induce vomiting.
- Rinse mouth thoroughly.
- Give water or milk if the person is conscious.
- Seek emergency medical attention—barium compounds are toxic, and hydroxides are corrosive.

FIRE FIGHTING MEASURES

Extinguishing Media:
- Use dry chemical, CO₂, alcohol-resistant foam, or water spray.
Fire Hazards:
- Not flammable, but reacts with water and acids to release heat and corrosive vapors.
- Decomposition may release:
  - Barium oxide (BaO)
  - Irritating or toxic fumes
Protective Equipment:
- Firefighters should wear SCBA (self-contained breathing apparatus) and full chemical protective gear.
Firefighting Instructions:
- Avoid contact with runoff—extremely harmful to aquatic life.
- Cool containers with water spray to prevent rupture.