What Is Precipitated Barium Sulfate - China

If you are searching for what is precipitated barium sulfate, this comprehensive guide explains everything industrial buyers need to know.

From its production process to its superior physical properties and wide-ranging applications, precipitated barium sulfate is a key functional filler in modern manufacturing industries such as coatings, plastics, and rubber.

What Is Precipitated Barium Sulfate?

Precipitated barium sulfate is a chemically synthesized inorganic compound with the formula BaSO₄.

Unlike natural barium sulfate (barite), which is mined from mineral deposits, precipitated barium sulfate is produced through a controlled chemical reaction between barium salts (such as barium sulfide) and sulfate sources (like sodium sulfate or sulfuric acid).

It is valued for its high purity, fine particle size, superior whiteness, and chemical inertness, making it an ideal filler and functional additive in high-performance applications.

How Is Precipitated Barium Sulfate Produced?

The production of precipitated barium sulfate involves a simple yet highly controlled precipitation process: Reaction: A solution of barium sulfide (BaS) reacts with sulfuric acid (H₂SO₄) or sodium sulfate (Na₂SO₄).

Precipitation: The reaction produces barium sulfate (BaSO₄) as an insoluble white precipitate and by-products such as sodium sulfide (if sodium sulfate is used).

Filtration and Washing: The precipitate is filtered and thoroughly washed to remove soluble impurities.

Drying and Milling: The filtered product is dried and finely milled to achieve precise particle size distribution.

This process ensures a product with consistent purity (≥98–99%), high whiteness, and controlled particle morphology.

Key Properties of Precipitated Barium Sulfate

Precipitated barium sulfate offers superior physical and chemical characteristics compared to natural barite: High Whiteness: Typically ≥98%, ideal for color-sensitive applications like coatings and plastics.

High Purity: Contains minimal impurities such as iron, silica, or other heavy metals.

Fine Particle Size: Tailored to submicron or micron levels for optimal dispersion.

Low Oil Absorption: Improves processing efficiency in paints, coatings, and plastics.

Chemical Inertness: Stable in acids, alkalis, and environmental exposure.

High Density: Around 4.4–4.5 g/cm³, contributing to weight and stability in formulations.

Company Contact:

• Posted By: Langfang Pairs Horses Chemical Co.,Ltd

• Phone: 860316 7106119

• Address: 007Room D Tower, The New Century Pedestrian street, Langfang , Hebei , China

• Email:

• Website: https://www.shuangmachemical.com/

• Business Description: Langfang Pairs Horses Chemical Co., Ltd. is one of the large-scale comprehensive professional pigment production bases in China.
  
  It is located in Langfang City on the "Beijing-Tianjin Corridor", adjacent to the Jingjintang, with convenient transportation.
  
  it was established in 1997 and is one of the companies in Langfang City that can detect and export chemical products，specializes in the production of barium sulphate,titanium dioxide, lithopone, kaolin, calcium carbonate, talcum and iron oxide, the company has strong technical force and strong product development capabilities.
  
  The pigment research institute and laboratory with modern facilities can ensure the consistency of products in multiple batches of factories and continue to develop new varieties of pigments.
  
  Our products can be widely used in coatings, paints, plastics, inks, masterbatch, paper making, rubber and other fields , And produce special products according to customer requirements.
  
  “Pair of Horses” brand products are sold well in China by virtue of excellent quality and perfect service system, And exported to all parts of the world.
  
  In many years of production and operation, we have established a solid and stable market relationship with domestic and foreign customers.
  
  “Pair of Horses” brand products have been well received by customers at home and abroad.
  
  We are committed to continuous development and innovation, to achieve customized routes, and win-win development!