Industrial, Medical & Food Grade Barium Sulfate (BaSO4) CAS 7727-43-7 for Oil Drilling, Medical Imaging, Paints & Paper Coatings

Barium Sulfate (CAS:7727-43-7,EINECS:231-784-4, HS Code:2833270000) is a white fine inorganic powder, mainly produced by natural barite grinding or chemical precipitation method. We provide industrial, medical and food grades complying with national standards, pharmacopoeia and FCC specifications. The product features excellent chemical inertness, insoluble in water, dilute acids and organic solvents. It has high specific gravity, superior whiteness, weather resistance and acid & alkali resistance. As a multifunctional raw material, it is widely used as weighting agent for oil drilling, medical contrast medium, paint filler and paper coating material.

Applications
Oil Drilling Industry (Core Application)
It serves as high-efficiency weighting agent for drilling mud. It increases mud density effectively to balance underground formation pressure, prevent blowout and fluid loss during oil and gas exploration. It also stabilizes well walls and reduces drilling risks, being an essential auxiliary material for geological drilling operations.
Medical Industry
Medical grade barium sulfate is the mainstream contrast agent for gastrointestinal radiography, also known as barium meal. With non-toxic property and strong X-ray absorption capacity, it presents clear imaging effect and will not react with human tissues. It is widely applied in clinical medical imaging and physical examination.
Food Industry
Food grade product acts as functional filler, whitening agent and anti-caking agent in food processing and daily cosmetics. It strictly meets global food safety requirements, stable in formula and will not affect product flavor and quality.
Other Industrial Applications
Used as high-grade filler for paints, coatings and inks to enhance hiding power, abrasion resistance and weatherability. In papermaking industry, it is applied for surface coating to improve paper whiteness, smoothness and printability. It is also commonly used in plastic, rubber, ceramic and electronic material manufacturing.

Product Advantages
✅ Full grade range: Three grades to meet industrial, medical and food production demands
✅ Extreme chemical stability: Resistant to acid, alkali and corrosion, no deterioration in use
✅ High whiteness & uniform particle size: Good dispersion and excellent filling performance
✅ Low impurity content: Strict control of harmful substances for medical and food safety
✅ High specific gravity: Ideal weighting effect for drilling fluid with low dosage
✅ Complete certification: Full COA and qualification documents supported for export

Packaging & Storage
Standard packaging: 25kg woven bags with inner PE liner; 1000kg FIBC bulk bags for large orders. Medical and food grades adopt sealed fiber drums or composite packaging for extra protection. The product is non-hygroscopic and chemically stable. Store in a cool, dry and well-ventilated warehouse. Keep away from strong corrosive substances. Shelf life is 24 months under proper storage conditions.
Safety Information
Classified as non-hazardous goods for transportation. The product itself is non-toxic. Fine dust may cause mild irritation to respiratory tract, eyes and skin. Wear dust mask and protective gloves during handling. In case of contact, rinse the affected area with plenty of clean water immediately. Complete MSDS and relevant qualification certificates can be provided upon request.

1. 1.A 70,000 ㎡ warehouse (20,000 MT capacity) with moisture-proof and temperature-controlled systems, enabling efficient fulfillment of large-volume orders.
2. 2.Free samples (Ship within 3-7 days) to let you test products at zero trial cost.
3. 3.Transparent lead time for hazardous chemicals: 45–60 days, with clear delivery schedules.
4. 4.Certified with a Hazardous Chemical Business License and ISO certification, ensuring smooth customs clearance.
5. 5.6 packaging options with customizable logos to minimize product loss during transportation.
6. 6.Over 400 chemical SKUs available for one-stop procurement, helping you reduce sourcing costs.