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Barium Sulfate

Ultrafine Modified Precipitated Barium Sulfate

Ultrafine Modified Precipitated Barium Sulfate is produced based on chemically precipitated barium sulfate and further processed with advanced surface modification technology. The product features narrow particle size distribution, uniform fineness, good chemical stability, good dispersibility, and high whiteness.

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Ultrafine Modified Precipitated Barium Sulfate

Ultrafine Modified Precipitated Barium Sulfate is a white fine powder produced by chemical precipitation and surface modification. With uniform particle size, narrow particle size distribution, stable chemical properties, and good dispersion performance, it is suitable for various industrial application systems.

The product can be widely used in transparent masterbatch, color masterbatch, paints, coatings, modified plastics, rubber, and related fields. It helps improve transparency, mechanical properties, and gloss of finished products. In suitable formulations, it can also help increase filling level, reduce carrier usage, and lower overall formulation cost.

// Packaging

Package: 25 kg woven plastic bags with inner plastic film liner, or kraft paper bags. Customized packaging is available upon request.
Storage: Store in a cool, dry, and well-ventilated area. Keep away from moisture during transportation and storage.

// Applications

Ultrafine Modified Precipitated Barium Sulfate is commonly used in the following industries:

Transparent Masterbatch: Used in transparent masterbatch systems to help improve transparency, gloss, and dispersion.
Color Masterbatch: Suitable for color masterbatch formulations requiring fine particle size and stable dispersion.
Modified Plastics: Used as a functional filler in modified plastic products to help improve mechanical properties and surface gloss.
Paints & Coatings: Provides good whiteness, chemical stability, and dispersion performance in coating systems.
Rubber: Used as a fine functional filler in rubber applications.

// Quality Specifications

Item	First Grade
Barium Sulfate (BaSO₄), dry basis	≥ 97.0%
Volatile Matter at 105°C	≤ 0.30%
Water Soluble Matter	≤ 0.30%
Iron (Fe) Content	≤ 0.006%
Whiteness	≥ 92.0
Oil Absorption	10–35 g/100g
pH of Water Suspension	5.5–9.5
Residue on 45 μm Sieve	≤ 0.01%
Median Particle Diameter	≤ 0.6 μm

// Basic Information

Item	Value
Chemical Name	Barium Sulfate
CAS No.	7727-43-7
Molecular Formula	BaSO₄
Molecular Weight	233.39
Appearance	White fine powder
Specific Gravity	4.5 g/cm³

// Key Features

Ultrafine Particle Size: Median particle diameter ≤ 0.6 μm, with uniform fineness and narrow particle size distribution.
Good Dispersion: Surface modification helps improve dispersion performance in masterbatch, plastics, coatings, and rubber systems.
High Whiteness: Whiteness ≥ 92.0, suitable for applications requiring stable white appearance.
Stable Chemical Properties: Chemically stable barium sulfate suitable for various industrial formulation systems.
Cost Efficiency: Helps improve filling level and reduce carrier usage in suitable applications.