Barium Chloride Dihydrate

Barium chloride is an inorganic compound with the formula BaCl₂. 

It is one of the most common water-soluble salts of barium. 

Like most other barium salts, it is white, toxic, and imparts a yellow-green coloration to a flame. 

It is also hygroscopic, converting first to the dihydrate BaCl₂(H₂O)₂.

Formula: BaCl2

Molar mass: 208.23 g/mol

Melting point: 1,764°F (962°C)

Boiling point: 2,840°F (1,560°C)

Density: 3.86 g/cm³

Barium Chloride Dihydrate is a highly versatile inorganic compound used across multiple industries for its solubility, reactivity, and effectiveness in chemical synthesis. From water treatment and metallurgy to laboratory reagents and pigment production, Barium Chloride Dihydrate offers unique chemical properties that make it indispensable in industrial processes.

This article explores everything you need to know about Barium Chloride Dihydrate, including its properties, applications, advantages, handling recommendations, and how to select a high-purity supplier.

What Is Barium Chloride Dihydrate?

Barium Chloride Dihydrate (BaCl₂·2H₂O) is the hydrated form of barium chloride, appearing as colorless to white crystals. It is derived from the reaction of barium carbonate or barium sulfide with hydrochloric acid, followed by crystallization with two molecules of water.

Its high solubility in water and compatibility with various reagents make Barium Chloride Dihydrate a vital component in chemical processing, especially where barium ions are required.

Physical and Chemical Properties of Barium Chloride Dihydrate

The dihydrate form ensures better stability and easier handling compared to the anhydrous version, especially in humid environments.

Applications of Barium Chloride Dihydrate

Thanks to its reactivity and purity, Barium Chloride Dihydrate is widely applied in:

1. Water Treatment

Barium Chloride Dihydrate is used to remove sulfates from industrial wastewater. By precipitating barium sulfate (BaSO₄), it helps reduce scale buildup and meet environmental discharge regulations.

2. Heat Treatment of Metals

In steel and metal processing, Barium Chloride Dihydrate is an essential flux in case hardening baths. It helps maintain uniform heat distribution and enhances surface hardness.

3. Manufacture of Pigments and Dyes

Barium Chloride Dihydrate acts as a precursor for barium-based pigments like lithopone (BaSO₄·ZnS) and other colorants used in paints and coatings.

4. Chemical Synthesis

It is used in laboratories and chemical manufacturing as a source of barium ions in reactions requiring high purity and consistency.

5. Textile Industry

In dyeing and mordant processes, Barium Chloride Dihydrate ensures better colorfastness and bonding of dyes to fabrics, especially in reactive dye applications.

6. Laboratory Reagent

Due to its ability to form precipitates with sulfate ions, Barium Chloride Dihydrate is widely used in analytical chemistry to test for the presence of sulfates.

Benefits of Using Barium Chloride Dihydrate

✅ High Solubility

Dissolves easily in water, allowing rapid and even dispersion in solutions for industrial and laboratory use.

✅ Controlled Hydration

The dihydrate form offers better stability and lower dusting than anhydrous alternatives, improving safety and shelf life.

✅ High Purity

Industrial and reagent grades of Barium Chloride Dihydrate typically exceed 99% purity, ensuring reliable performance in sensitive chemical processes.

✅ Versatile Use

Applicable across multiple industries from textiles to metallurgy, making it a cost-effective, multi-purpose chemical.

Handling and Safety Considerations

While Barium Chloride Dihydrate is a valuable industrial material, it must be handled with caution due to its toxicity.

⚠️ Safety Guidelines

• Always wear gloves, goggles, and a mask during handling.

• Avoid inhalation or ingestion; it is toxic if consumed.

• Store in a cool, dry area away from acids and oxidizers.

• Use proper ventilation in working areas.

⚠️ Environmental Note

Barium Chloride Dihydrate should not be disposed of in open drains. Follow local hazardous waste disposal regulations to prevent environmental contamination.

Packaging and Storage

Barium Chloride Dihydrate is usually packed in:

• 25kg or 50kg HDPE bags with liners

• Drums or IBCs for large-scale industrial use

Ensure all containers are sealed tightly to prevent moisture absorption and degradation.

Choosing a Reliable Supplier of Barium Chloride Dihydrate

When sourcing Barium Chloride Dihydrate, consider:

• Purity and compliance with international standards (ISO, REACH, etc.)

• Customized particle size or granularity if needed

• Safety documentation such as SDS and COA

• Consistent supply chain and bulk availability

Work only with suppliers offering technical support and proven industry experience to ensure your application gets the best performance from Barium Chloride Dihydrate.

Conclusion: Why Barium Chloride Dihydrate Is an Industrial Must-Have

With its unmatched solubility, high reactivity, and wide applicability, Barium Chloride Dihydrate stands as a key chemical across industrial domains. Whether you're treating wastewater, heat-treating metals, or synthesizing pigments, Barium Chloride Dihydrate ensures consistent, high-quality results.

Investing in premium-grade Barium Chloride Dihydrate from a trusted source means improved product performance, operational efficiency, and environmental compliance.