CAS.10326-27-9 International Class Barium Chloride BaCl₂ White Crystal

Barium chloride (BaCl₂) is an important inorganic compound with the following key properties:

1. Chemical properties
Chemical formula: BaCl₂

Molecular weight: 208.23 g/mol

Chemical structure: consists of one barium ion (Ba² +) and two chloride ions (Cl⁻).

2. Physical properties
Appearance: White crystalline solid, usually in powder or particle form.

Density: 3.856 g/cm³ (anhydrous)

Melting point: 962°C (no water)

Boiling point: 1560°C (anhydrous)

Solubility: soluble in water, slightly soluble in ethanol and methanol. At 20°C,

about 35.8 grams per 100 ml of water can be dissolved.

Hygroscopicity: anhydrous barium chloride has hygroscopicity and easily absorbs moisture in the air.

3. Crystal structure
Crystal structure: anhydrous barium chloride belongs to the orthogonal crystal system,

and the dihydrate (BaCl₂·2H₂O) belongs to the monoclinic crystal system.

4. Chemical stability
Stability: Chemically stable at room temperature, but will decompose at high temperatures.

Reactivity: Reacts with sulfate to form barium sulfate precipitation, often used for the detection of sulfate ions.

5. Toxicity
Toxicity: Barium chloride is toxic, ingestion or inhalation will cause harm to human health,

should be handled with caution.

6. Application field
Chemical reagents: Used for laboratory analysis and chemical synthesis.

Water treatment: Used to remove sulfates from water.

Metal treatment: Used for metal surface treatment and heat treatment.

Manufacture of other barium salts: used as raw materials for the manufacture of other barium compounds.

Fireworks: Fireworks used to create a green flame.

7. Storage and handling
Storage: Store in a dry, well-ventilated environment to avoid moisture absorption.

Handling: Wear protective equipment during operation and avoid direct contact with skin and eyes.

Barium chloride is mainly used for tanning and dyeing in the leather industry,

and the following are its specific applications and precautions:

1. Advantages
Improves tanning effect: makes leather softer and more durable.

Enhance the dyeing effect: make the color more bright and uniform.

Improve fastness: Enhance the washing resistance and light resistance of dyed leather.

2. Precautions
Toxicity: barium chloride is toxic. Wear protective equipment during operation to avoid direct contact.

Waste water treatment: Waste water containing barium chloride should be properly treated to

prevent environmental pollution.

Concentration control: Adjust the concentration of barium chloride according to leather and dye to avoid excessive use.

Storage: Store in a dry, well-ventilated environment to avoid moisture absorption.

3 Substitute
Environmentally friendly alternatives: Consider using more environmentally friendly tanning agents

and mordants to reduce your environmental impact.

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