Sulfate Minerals Chemical Filler Barium Sulfate Powder For Chemical Industry Cas 7727 43 7

Barium Sulfate is a core heavy mineral powder and functional filler product of Hongjian Chemical. Known for its high density, excellent chemical inertness, and outstanding optical properties, it plays an irreplaceable role in high-end coatings, plastics and rubber, medical imaging, and radiation protection.

Leveraging high-quality barite resources and advanced crushing, purification, and modification processes, we provide customers with a full range of products from standard industrial grade to high-purity electronic grade.

• Aliases: Barite Powder, Precipitated Barium Sulfate
• English Name: Barium Sulfate
• Chemical Formula: BaSO₄
• Molecular Weight: 233.39
• CAS Number: 7727-43-7 (precipitated), 13462-86-7 (natural)

Key Properties: High density (4.3-4.5 g/cm³), strong chemical inertness, high whiteness, light and weather resistance, radiation protection

• High-Gloss Coating Grade: Concentrated particle size distribution (d97 ≤ 10μm), low light extinction, provides excellent surface gloss and fullness, suitable for automotive topcoats, high-end furniture paint.
• Anti-Corrosion Coating Grade: Flake-structured product forms a dense barrier layer, significantly improving coating corrosion resistance and impermeability, used for ships, marine engineering protection.
• Powder Coating Grade: Low oil absorption, high leveling, improves edge coverage and anti-caking performance.

• High-Gloss Plastic Grade: Very low impurity content (Fe₂O₃ ≤ 0.005%), ensures high whiteness and pure color of products, used for appliance housings, high-end injection molded parts.
• Rubber Weighting Grade: High-density characteristics for weighting and balancing rubber products, does not affect vulcanization properties, increases product specific gravity.
• Sound Insulation and Damping Grade: Filled in engineering plastics and rubber to enhance sound insulation, damping, and vibration absorption properties.

• Pharmaceutical Grade: Complies with USP/EP standards, very low heavy metal content (Pb ≤ 5 ppm), used for gastrointestinal contrast agents.
• Radiation Protection Grade: High purity (BaSO₄ ≥ 98%), used for protective coatings, panels, and concrete, effectively shields X-rays and gamma rays.
• Medical Plastic Grade: Specifically for plastic components of medical devices, provides radiation protection function while meeting strict biocompatibility requirements for medical products.

• Coated Paper Grade: High refractive index (1.64), provides excellent hiding power and whiteness, can partially replace titanium dioxide.
• Color Ink Grade: Chemically inert, good compatibility with pigments, improves ink fluidity and printability.

• Own high-quality barite mines with BaSO₄ content ≥ 95%, low associated impurities.
• Multi-stage crushing and precise classification technology enable precise control of d97 from 2μm to 45μm.
• Chemical purification production line with impurity (Fe, Si, etc.) removal rate ≥ 90%.

• Appearance: White powder or grayish-white powder (natural)
• Density: 4.3 - 4.5 g/cm³
• Mohs Hardness: 3.0 - 3.5
• Oil Absorption: 10 - 25 g/100g (adjustable)
• pH Value: 6.5 - 8.5 (neutral)

• Recommends optimal product specifications based on customer system characteristics.
• Provides samples for application testing and formula verification.
• Assists in determining reasonable addition amounts and process parameters.

• Surface Treatment: Provides products treated with silane, titanate, stearic acid, and other coupling agents.
• Composite Modification: Develops composite fillers like barium sulfate/titanium dioxide, barium sulfate/calcium carbonate.
• Functional Customization: Develops functional products like conductive, antibacterial, etc., for special needs.

• Provides complete test reports for each batch.
• Establishes customer usage files and conducts regular follow-ups.
• Professional technical team provides online and offline application support.