Barium Sulfate CAS 7727-43-7

Barium Sulfate is a chemically inert, high-density inorganic filler renowned for its exceptional stability and whiteness. Unlike other fillers, it is insoluble in water, acids, and alkalis, making it an ideal choice for harsh chemical environments.

Our Precipitated Barium Sulfate series is produced using advanced chemical precipitation methods, resulting in defined particle sizes, high gloss, and narrow particle size distribution. It functions as a functional extender in top-tier coatings and plastics, enhancing brilliance and surface hardness. We also supply Natural Barite Powder for drilling fluids and friction materials.

Need a specific particle size (D50) or whiteness level? 📧 Email: info@industrochem.com

We offer tailored solutions with specific surface treatments (stearic acid or coupling agents) to improve dispersion in organic polymers.

Physicochemical Properties (Technical Data)

The following data represents our High-Gloss Precipitated Grade, widely used in automotive coatings and engineering plastics. This specification aligns with top-tier export standards.

Applications

Barium Sulfate is a versatile functional material across various high-tech sectors:

1. Coatings, Paints & Inks:

• Powder Coatings: Acts as a leveling agent to improve flow and gloss. Its chemical inertness provides excellent weather resistance.
• Automotive Primers: Used for its “spacer” effect, optimizing the efficiency of Titanium Dioxide ($Ti{O}_2$TiO2​) pigments and reducing costs without sacrificing opacity.

2. Plastics & Rubber:

• Engineering Plastics: Increases the specific gravity and surface hardness of ABS, PP, and PA. It also provides sound-dampening (acoustic insulation) properties.
• Elastomers: Improves the aging resistance and acid resistance of rubber products.

3. Oil & Gas (Natural Grade):

• Drilling Fluids: High-density natural barite is used as a weighting agent to suppress formation pressure and prevent blowouts in drilling muds.

4. Battery Industry:

• Lead-Acid Batteries: Acts as an expander in the negative plate active mass to maintain capacity and prolong battery life.

Quality Assurance (QA/QC)

At Industrochem, we guarantee consistency through rigorous analytical testing under ISO 9001:2015 protocols.

• Particle Size Analysis: We utilize Malvern Mastersizer Laser Diffraction to strictly monitor the D50 and D97 values. This ensures a narrow particle size distribution, preventing “oversize” particles that could cause surface defects in thin-film coatings.
• Whiteness Control: Every batch is tested using a spectro-colorimeter to ensure $L^{\ast }$L∗ values remain consistent, preventing color deviation in your final product.
• Heavy Metal Screening: We use XRF (X-ray Fluorescence) and AAS (Atomic Absorption Spectroscopy) to ensure heavy metals (Pb, Cd, Hg) are well below RoHS and REACH limits, making our product safe for consumer goods.

Storage, Handling & Safety

Storage Conditions:

• Environment: Store in a cool, dry, and well-ventilated area.
• Moisture: Although Barium Sulfate is insoluble, the powder can agglomerate (clump) if exposed to high humidity. Keep pallets wrapped and bags sealed.
• Segregation: Store away from reduction agents.

Safety Precautions (HSE):

• Toxicity: Barium Sulfate is generally considered non-toxic due to its extreme insolubility in the body (unlike soluble barium salts). However, industrial hygiene is required.
• Dust Hazard: Prolonged inhalation of high concentrations of dust may cause benign pneumoconiosis (Baritosis).
• PPE Recommendations:
  • Respiratory: Use a NIOSH-approved dust mask (N95 or P2 rating) during handling and mixing.
  • Eyes: Safety goggles to prevent mechanical irritation.
  • Skin: Wear long sleeves and gloves to minimize skin drying.

Optimize your formulation with high-purity Barium Sulfate.

From weighting agents to high-gloss extenders, we deliver the quality you need.

👉 Get a Quote: info@industrochem.com