Precipitated Barium Sulfate

Product Overview
Precipitated Barium Sulfate is a high-purity functional powder material produced by Hongjian Chemical using chemical synthesis processes. Known for its extreme whiteness, excellent dispersibility, and chemical stability, it serves as an irreplaceable functional filler in high-end coatings, plastics, inks, and other industries. Through precisely controlled precipitation reactions and surface treatment technologies, we ensure our products possess exceptional performance that ordinary natural barium sulfate cannot match.

❋ Aliases: Artificial Barium Sulfate, Blanc Fixe
❋ English Name: Precipitated Barium Sulfate
❋ Chemical Formula: BaSO₄
❋ Molecular Weight: 233.39
❋ CAS Number: 7727-43-7

Key Properties: High purity (≥99%), excellent whiteness (>98%), narrow particle size distribution, good dispersibility, chemical inertness

Hongjian Chemical Precipitated Barium Sulfate Product Series

1. High-End Coatings Special Series

• High-Gloss Topcoat Grade: Particle size d50=0.5-0.8μm, concentrated distribution, provides extreme surface smoothness and distinctness of image, used for automotive OEM coatings, high-end industrial paints.

• Water-Based System Special Grade: Specially surface-treated for excellent dispersibility in water-based systems, resistant to flocculation and settling, suitable for water-based industrial paints, water-based wood coatings.

• Radiation Curing Grade: Low impurity content, weak UV absorption, does not affect curing efficiency, used for UV coatings, photocurable inks.

2. Plastics & Rubber Special Series

• High-Gloss Plastic Grade: Uniform particle size, extremely low impurity content (Fe≤0.001%), significantly improves product surface gloss and whiteness, used for ABS, PP, PS, and other high-gloss products.

• Elastomer Reinforcement Grade: Specially surface-activated for good compatibility with rubber, improves tensile strength and wear resistance of products, used for high-grade shoe materials, seals.

• Film Special Grade: Nano-sized particles (d50=0.1-0.3μm), good light transmission, used for BOPP films, agricultural greenhouse films, and other functional masterbatches.

3. Inks & Pigments Special Series

• Offset Printing Ink Grade: Low oil absorption (14-18g/100g), good fluidity, does not affect ink drying speed, provides excellent printability.

• Pigment Dispersant: Serves as an inorganic dispersion carrier, prevents organic pigment flocculation, improves coloring power and brightness.

• Paste Stabilizer: Used in water-based paste systems, prevents sedimentation and stratification, extends storage stability.

4. Special Application Series

• Cosmetic Grade: Complies with cosmetic ingredient standards, non-toxic and non-irritating, used in foundations, sunscreens, etc., providing a silky touch.

• Pharmaceutical Carrier Grade: Meets pharmacopoeia standards, used as drug carriers and excipients for X-ray contrast agents, tablet fillers.

• Electronic Material Grade: High purity grade (99.9%), used for electronic ceramics, insulating materials, and other high-end electronic components.

Hongjian Chemical Quality Assurance

Production Process Advantages

• Uses "barite reduction-barium sulfide-precipitation" full-process control technology to ensure high product purity and stability.

• Multi-stage precision washing system effectively removes soluble impurities, conductivity ≤100 μS/cm.

• Dynamic drying technology, product moisture content ≤0.2%, prevents caking.

Quality Indicator System

Physical Characteristics

• Appearance: White fine powder

• Density: 4.3-4.5 g/cm³

• Refractive Index: 1.64

• Mohs Hardness: 3.0-3.5

• Thermal Stability: >1580°C without decomposition

Application Technical Support

Formula Optimization Services

• Provides recommendations for optimal addition levels in different systems.

• Assists in solving technical challenges like dispersion and settling during product application.

• Recommends the most suitable product specifications based on specific customer needs.

Surface Treatment Customization

• Provides products treated with various coupling agents like silane, titanate, aluminate.

• Develops modified products with special functions (e.g., antibacterial, conductive).

• Accepts small-batch customized surface treatment services.

After-Sales Guarantee System

• Each batch comes with a detailed test report.

• Establishes customer technical files and provides regular application technology updates.

• 24-hour technical consultation response for quick problem resolution.