Product Overview

Our Precipitated Barium Sulfate (BaSO₄) is a premium-quality white powder renowned for its exceptional chemical stability and high refractive index. Widely used as a functional filler and performance enhancer across multiple industries.

Technical Specifications

✅ Chemical Formula: BaSO₄
✅ Purity: ≥98%
✅ Appearance: Ultra-fine white powder
✅ Particle Size: 0.5-10μm (customizable)
✅ Oil Absorption: 10-15g/100g
✅ Refractive Index: 1.64
✅ pH Value: 6.5-8.5
✅ Packaging: 25kg/bag or bulk

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

Primary Applications

1. Coatings & Paints

• Anti-settling agent for superior suspension

• Enhances opacity and weather resistance

2. Plastics & Rubber

• Reinforcing filler for mechanical strength

• Improves surface finish and processing

3. Specialty Applications

• Medical imaging contrast agent

• Radiation shielding materials

• Cosmetics and paper coating

Why Choose Us?

✅ High-purity products, in compliance with international standards
✅ 30+ Years Chemical Manufacturing Experience
✅ Strict QC with Batch Traceability
✅ Global logistics, supporting sea and air transportation
✅ Technical support, providing customized solutions
✅ Factory direct supply, with strong price competitiveness