Barium Sulfide

Barium sulfide (BaS), a versatile inorganic compound, is a critical material in numerous industrial, agricultural, and chemical applications. Known for its unique properties and reactivity, this compound plays a pivotal role in manufacturing processes, environmental management, and more. In this detailed guide, we explore its characteristics, production methods, uses, safety protocols, and market relevance-ensuring you have the insights needed to leverage BaS effectiviely.

Properties of Barium Sulfide

BaS typically appears as a white or off-white crystalline powder. However, industrial-grade BaS may present as a light brown or black powder or lump due to impurities or oxidation.

BaS is hygroscopic, readily absorbing moisture from the air, which leads to hydrolysis. In dry envrionments, it oxidizes slowly, forming yellow or orange-colored byproducts. In humid conditions, it decomposes rapidly, releasing hydrogen sulfide (H₂S)-a process accelerated in acidic environments. This reactivity makes proper storage essential (e.g., airtight containers in dry, cool areas).

Production Methods

The synthesis of BaS mirrors processes used for Calcium Sulfide and Strontium Sulfide. The primary method involves reducing Barium Carbonate (BaCO₃) with carbon with high temperature (≈1100℃):

BaCO₃+C—BaS+2CO

Applications of Barium Sulfide

1.Chemical Manufacturing:

• Lithopone Production: BaS reacts with zinc sulfate to create lithopone (ZnS+BaSO₄), a white pigment used in paints, coatings, and plastics.
• Barium Salts Synthesis: Acts as a precursor for barium nitrate, chloride and hydroxide.

2.Industrial Uses:

• Rubber Industry: As a desulfuring agent, BaS removes excess sulfur during vulcanization, enhancing rubber elasticity.
• Leather Processing: Utilized as a hair removal agent in tanning, improving hide quality.

3.Agriculture:

• Pest Control: Effective as an acaricide against mites and a bactericide for crop protection. Compliance with EPA guidelines is critical for safe application.

4.Environmental Applications

• Wastewater Treatment: Neutralizes heavy metals via precipitation.

Safety and Handling

Barium sulfide is classified under UN2813 (4.3/PG 2), indicating it’s hazardous when moist. key precautions include:

• Storage: Keep in moisture-free, ventilated areas away from acids.
• Handling: Use PPE (gloves, goggles) to prevent skin/eye contact.
• Disposal: Follow local regulations and OSHA standards for hazardous waste.

Market Trends and Demand

The global BaS market is driven by demand from the paint, agriculture, and chemical sectors. Emerging economies are increasingly adopting lithopone for cost-effective alternatives to titanium dioxide. Additionally, advancements in wastewater treatment technologies are expanding BaS applications.

Why Choose our barium sulfide

• High Purity: 99%+ grade for industrial and agriculture use.
• Certified Production: ISO 9001-compliant manufacturing.
• Custom Solutions: Tailored particle sizes and packaging.
• Expert Support: Technical guidance from synthesis to application.