1. Basic Product Information
Product Name: Natural Barium Sulfate Powder, Barite Powder
Chemical Name: Barium Sulfate
Molecular Formula: BaSO₄
Molecular Weight: 233.39
CAS No.: 7727-43-7
HS Code: 2511.10
Payment Terms: T/T, L/C
Trade Terms: FOB, CFR, CIF
MOQ: 20GP ≈ 20-25MT
Appearance: High-whiteness, fine and smooth white powder with uniform and dry texture. No caking, no black spot impurities, no coarse particles and no peculiar odor. It features excellent fluidity and dispersibility with pure and bright color.
Product Introduction: Natural Barium Sulfate Powder, also known as Barite Powder, is an inorganic functional powder material processed from high-quality natural barite ore through fine washing, drying, crushing, grading and purification. The product is non-toxic, non-radioactive and extremely chemically stable. It is divided into three grades according to purity, whiteness and fineness: Drilling Grade, Industrial Coating Grade and Ultra-fine High-whiteness Refined Grade. It is widely applied in petroleum drilling, coating chemical industry, rubber and plastic filling, radiation protection, friction materials, ceramic building materials and other fields. With core advantages of high specific gravity, high whiteness, acid and alkali resistance, high temperature resistance, corrosion resistance, strong covering power, low oil absorption and good dispersibility, it is a highly cost-effective and versatile functional filler and weighting raw material in industrial production.
2. Physical and Chemical Properties
This product is a white inorganic powder with stable physical properties, non-toxic, odorless, and non-radioactive. Its density is 4.3-4.5g/cm³ with a Mohs hardness of 4.0-4.5, featuring high specific gravity and good compaction performance. It has strong chemical inertness, insoluble in water, ethanol, dilute acid, dilute alkali, and various organic solvents at room temperature. It exhibits excellent acid and alkali corrosion resistance, high temperature resistance, weather resistance, and aging resistance, without discoloration, pulverization, or cracking during long-term outdoor use. The powder has uniform particle size distribution and controllable fineness, with good wettability and excellent compatibility with resin, rubber, plastic, and other substrates, avoiding agglomeration and ensuring high dispersion efficiency. Meanwhile, it has outstanding X-ray and ultraviolet shielding performance, with excellent radiation protection, sound insulation, weighting, and wear resistance effects, making it a high-end industrial powder material with comprehensive functionality and stable performance.
3. Executive Standards & Technical Specifications
Executive Standard: GB/T 2899-2017 Industrial Barium Sulfate, SY/T 5089-2018 Petroleum Drilling Barite Powder
Product Grade: Drilling Weighting Grade, General Industrial Coating Grade, Ultra-fine High-whiteness Refined Grade
4. Core Product Characteristics
1. Ultra-stable Chemical Properties & Excellent Weather Resistance
Refined from natural ore with high chemical inertness, the product resists strong acid, strong alkali, high temperature and corrosion. It is not easy to oxidize or deteriorate and insoluble in various solvents. It maintains stable performance without pulverization, discoloration or cracking during long-term outdoor use, adapting to harsh industrial working conditions.
2. High Specific Gravity & Outstanding Filling Performance
With a much higher density than ordinary powder fillers, it delivers remarkable weighting and compaction effects. It serves as the core weighting material for oil drilling mud, and effectively improves the density and texture of rubber, plastic, coating and friction materials while reducing product shrinkage rate.
3. High Whiteness & Strong Covering Power with Good Decorative Effect
The refined grade features high whiteness, pure color and uniform fine powder without black impurities. It has excellent covering power and glossiness, which can partially replace titanium dioxide, improve the surface finish and coloring effect of coatings, inks and rubber-plastic products, and greatly reduce raw material costs.
4. Good Dispersibility & Strong Compatibility
After fine grading treatment, the powder has narrow particle size distribution, no agglomeration and excellent wettability. It is highly compatible with water-based paint, solvent-based paint, resin, rubber, plastic and other substrates, easy to disperse without precipitation or separation, suitable for automated production lines.
5. Low Oil Absorption & High Filling Capacity for Cost Reduction
It has low oil absorption value and large filling capacity, which can significantly increase the filler addition ratio of coatings and rubber-plastic products, reduce the dosage of high-cost main materials, and effectively lower formula production costs without affecting product performance.
6. Comprehensive Functions of Radiation Protection, Sound Insulation & Wear Resistance
It possesses excellent X-ray and ultraviolet shielding ability with outstanding radiation protection effect. It also improves the wear resistance, sound insulation, shockproof and flame retardant properties of products, widely used in radiation-proof engineering, friction brake materials and high-end building materials.
7. Safe, Environmentally Friendly & Harmless
Made of natural mineral raw materials, it is non-toxic, non-radioactive and free of heavy metal residues with controllable dust. It complies with industrial environmental protection standards and can be safely used in civil coatings, rubber-plastic products, building materials and other livelihood fields.
5. Main Application Fields
Petroleum and Natural Gas Drilling Industry (Special for Drilling Grade)
As a special weighting agent for drilling mud, it is a core consumable for oil and gas drilling. It increases mud density by virtue of ultra-high specific gravity to balance formation pressure, prevent blowouts, well collapse and leakage, and stabilize drilling conditions. It is suitable for various onshore and offshore oil and gas drilling projects and is an essential raw material for the drilling industry.
Coating and Ink Industry
Widely used in interior and exterior wall architectural coatings, industrial anti-corrosion paints, marine coatings, powder coatings, water-based latex paints and printing inks. It acts as a functional filler, matting agent, whitening agent and wear-resistant additive to improve coating covering power, gloss, weather resistance, corrosion resistance and film hardness, prevent paint aging and pulverization, and reduce coating production costs.
Rubber, Plastic and Polymer Material Industry
Used for filling and modification of plastics, rubber, silica gel, PVC products, pipes, plates, wires and cables. It improves product hardness, wear resistance, toughness, flame retardancy and shading performance, reduces product shrinkage and deformation, optimizes surface finish, and achieves weighting, sound insulation and shockproof effects.
Radiation Protection and Medical Protection Industry
With excellent ray shielding performance, it is applied to hospital radiation-proof walls, protective plates, radiation-proof coatings, medical protective equipment and atomic energy industrial shielding materials, which can effectively block X-rays and ultraviolet rays with stable safety protection performance.
Friction Brake Material Industry
Used for filling brake pads, friction discs and industrial friction materials to improve the stability of friction coefficient, high temperature resistance and wear resistance of products, reduce braking noise, suitable for the production of automobile, machinery and rail transit brake parts.
Ceramic and Building Material Industry
Used for ceramic body and glaze filling, high-end stone, sound insulation plates and waterproof building materials. It enhances ceramic density, gloss and compressive strength, optimizes the wear resistance, moisture resistance and sound insulation performance of building materials, and improves product grade.
Fine Chemical and Lithopone Production
As the core raw material for the production of lithopone and barium salt series products, it is used in chemical synthesis, auxiliary preparation and fine processing of industrial fillers with stable purity and strong adaptability.
6. Packaging, Storage & Transportation
Conventional Packaging: 25kg woven bags or paper-plastic composite bags with PE moisture-proof inner film for sealed packaging, featuring dust-proof, moisture-proof, leak-proof and damage-proof performance. 500kg and 1000kg bulk ton bags are available. Custom services including film coating, logo printing, split packaging and customized fineness packaging are supported to meet the compliant requirements of industrial mass production, export and high-end fine processing.
Storage Requirements: Store in cool, dry, ventilated and clean professional warehouses with dry environment and no water accumulation. Keep away from humid and dusty areas. Keep sealed and stacked strictly to prevent moisture absorption and impurity mixing. Do not store together with strong acid, corrosive and polluting goods. The shelf life is 12 months. Regular ventilation and sorting are required to avoid powder compaction and caking.
Transportation Requirements: Classified as ordinary non-dangerous mineral products for normal cargo transportation. Keep rainproof, moisture-proof, dust-proof and damage-proof during transportation with careful handling to avoid package breakage, powder leakage and moisture caking. Mixed transportation with acid liquid, color dye and corrosive goods is prohibited. Bulk sea transportation requires fully sealed moisture-proof packaging to prevent tidal moisture from affecting powder purity and dispersibility.