barium sulfate

Introduction to Barium Sulfate: Properties and Applications

Barium sulfate (BaSO₄) is a white, crystalline, inorganic compound known for its high density, chemical inertness, and opacity to X-rays. It occurs naturally as the mineral barite, which is the primary source of barium. The compound is virtually insoluble in water and most acids, making it an ideal filler and extender in a wide range of industrial applications. Its key properties include a specific gravity of 4.5, a Mohs hardness of 3.0-3.5, and a refractive index of 1.64. These characteristics make it indispensable in the oil and gas drilling industry as a weighting agent in drilling fluids, in the paint and coatings industry as a high-quality pigment and filler, in the plastics industry for improving density and sound deadening, and in the medical field as a radiocontrast agent for gastrointestinal imaging. The global demand for barium sulfate is closely tied to the health of the oil and gas sector, construction, and automotive industries.

Global Top 10 Barium Sulfate Suppliers and Manufacturers

The global barium sulfate market is characterized by a mix of multinational corporations and specialized regional producers. The following list represents the top 10 suppliers and manufacturers globally, based on production capacity, market share, and global reach.

Top 10 Barium Sulfate Suppliers and Factories in China

China is the world’s largest producer and exporter of barium sulfate, both in its natural (barite) and precipitated forms. The following are the top 10 manufacturers and suppliers within China, known for their production scale, quality, and export capabilities.

Global Supplier and Factory Contact Directory

The following table provides a directory of key global barium sulfate suppliers and their verified contact information for procurement inquiries.

Key Factors When Choosing a Chinese Barium Sulfate Manufacturer

Selecting the right manufacturer in China requires careful evaluation of several critical factors to ensure product quality, supply chain reliability, and cost-effectiveness.

Quality and Purity Standards

Verify that the manufacturer can consistently meet your required purity levels (e.g., 97% BaSO₄ for oil drilling, 99%+ for paints/plastics). Request certificates of analysis (COA) and third-party lab reports. ISO 9001 certification is a baseline requirement.

Production Capacity and Scalability

Assess the factory’s annual output and ability to scale up production during peak demand. Large factories in Guizhou and Shandong often have capacities exceeding 50,000 MT per year, while smaller specialized plants may offer better flexibility for custom orders.

Logistics and Export Experience

Choose a supplier with proven export experience to your region. Check their familiarity with documentation (e.g., Bill of Lading, Certificate of Origin, MSDS) and their ability to handle bulk shipping via ports like Qingdao, Tianjin, or Shanghai.

Price Competitiveness vs. Hidden Costs

While Chinese barium sulfate is generally cost-competitive, factor in shipping costs, customs duties, and potential quality control fees. Request FOB (Free on Board) and CIF (Cost, Insurance, Freight) quotes to compare total landed costs.

Why Buy from Chinese Manufacturers? Key Advantages

Purchasing barium sulfate from Chinese manufacturers offers several distinct advantages that make them a preferred sourcing destination globally.

Abundant Raw Material Reserves

China holds some of the world’s largest barite reserves, located primarily in Guizhou, Hunan, and Guangxi provinces. This vertical integration from mine to mill reduces raw material costs and ensures supply stability.

Advanced Production Technology

Chinese manufacturers have invested heavily in modern precipitation and grinding technologies. They can produce a wide range of grades, from ultra-fine nano barium sulfate for high-end coatings to cost-effective filler grades for plastics.

Cost Efficiency

Lower labor costs, economies of scale, and government support for chemical manufacturing allow Chinese producers to offer prices that are often 15-30% lower than Western or Japanese counterparts, without compromising on basic quality standards.

Customization and Flexibility

Many Chinese factories, especially mid-sized ones, are highly flexible in customizing particle size, surface treatment (e.g., stearic acid coating), and packaging according to buyer specifications.

How to Find a Professional Barium Sulfate Manufacturer in China

Identifying a reliable and professional manufacturer requires a systematic approach. The following steps are recommended for international buyers.

Online B2B Platforms and Directories

Utilize platforms like Alibaba (Verified Supplier status), Made-in-China.com, and Global Sources. Filter by “Manufacturer” rather than “Trading Company” and check for factory audit reports (e.g., SGS, Bureau Veritas).

Industry Exhibitions and Trade Shows

Attend key chemical exhibitions such as China International Chemical Industry Fair (ICIF) in Shanghai or CHINACOAT in Guangzhou. These events provide direct access to factory representatives and product samples.

Third-Party Verification and Audits

Hire a third-party inspection agency like SGS, Intertek, or TÜV Rheinland to conduct a factory audit. This verifies production capacity, quality control systems, and compliance with environmental regulations.

Requesting Samples and Testing

Always request representative samples (500g to 1kg) before placing a bulk order. Test the samples in your own lab for whiteness, particle size distribution (PSD), specific gravity, and moisture content to ensure they meet your specifications.

Application Scenarios and Tailored Solutions

Barium sulfate’s unique properties enable it to be used in diverse industries. Below are specific application scenarios and corresponding solutions.

Oil and Gas Drilling

Scenario: High-pressure formations require heavy drilling mud to prevent blowouts.
Solution: Use API-grade barite (specific gravity 4.2+) from Chinese suppliers like Guizhou Toli to achieve mud weights of up to 21 lb/gal. Surface-treated barite with improved dispersion is available for water-based muds.

Paints and Coatings

Scenario: Need for high gloss, opacity, and chemical resistance in automotive coatings.
Solution: Precipitated barium sulfate (e.g., Blanc Fixe) from BASF or Chinese producers like Hubei Yihua provides excellent brightness (whiteness >95%) and acts as a cost-effective extender for TiO₂.

Plastics and Masterbatch

Scenario: Improving density, sound deadening, and dimensional stability in polypropylene (PP) compounds.
Solution: Surface-coated barium sulfate (e.g., with stearic acid) from specialty manufacturers like Hunan Heaven Materials enhances compatibility with polymer matrices, reducing filler settling and improving impact strength.

Medical Imaging (Barium Meal)

Scenario: Radiopaque contrast agent for gastrointestinal X-rays.
Solution: High-purity, sterile barium sulfate (USP/EP grade) from certified suppliers like Solvay or Nippon Chemical ensures patient safety and optimal imaging contrast.

Frequently Asked Questions (10 FAQs)

1. Q: What is the difference between natural barite and precipitated barium sulfate?
   A: Natural barite is ground from mineral ore, has lower purity (90-95%) and larger particle size. Precipitated barium sulfate is chemically synthesized, offering higher purity (99%+), finer particle size, and better brightness.
2. Q: Is barium sulfate toxic?
   A: Barium sulfate is chemically inert and non-toxic due to its insolubility. However, soluble barium compounds (e.g., barium chloride) are highly toxic. Always ensure your supplier provides a Material Safety Data Sheet (MSDS).
3. Q: What is the typical packaging for barium sulfate?
   A: Common packaging includes 25kg or 50kg multi-layer paper/PP bags, 1-tonne big bags (FIBC), or bulk shipment for large orders.
4. Q: How is barium sulfate used in X-ray imaging?
   A: It is administered orally or rectally as a suspension. Its high atomic number absorbs X-rays, allowing clear visualization of the gastrointestinal tract.
5. Q: What is the specific gravity of barium sulfate?
   A: The specific gravity of pure barium sulfate is approximately 4.5 g/cm³. Drilling grade barite must have a minimum specific gravity of 4.2.
6. Q: Can barium sulfate be used in food packaging?
   A: Yes, but only if it meets FDA or EU food contact regulations. It is used as a filler in plastics for food containers to improve opacity and barrier properties.
7. Q: What is the price range for precipitated barium sulfate?
   A: Prices vary widely based on grade and quantity. As of 2026, standard precipitated BaSO₄ (99% purity) is approximately $600-$1,200 per metric ton FOB China. Nano-grade can exceed $2,000/MT.
8. Q: How do I test the quality of barium sulfate?
   A> Key tests include whiteness (using a spectrophotometer), particle size distribution (laser diffraction), specific gravity (pycnometer), and chemical purity (XRF or ICP).
9. Q: What is the lead time for a 20-foot container?
   A: Typical lead time from Chinese factories is 15-30 days after order confirmation and payment, depending on production schedule.
10. Q: Are there environmental regulations for barium sulfate production?
    A: Yes, Chinese manufacturers must comply with environmental protection laws, including wastewater treatment and dust control. ISO 14001 certification indicates environmental management compliance.

Procurement Considerations for Barium Sulfate

When procuring barium sulfate, especially from international sources, pay attention to the following critical aspects to avoid costly mistakes.

Contractual Clarity

Ensure the contract specifies product grade (e.g., API 13A for drilling, ISO 3262 for paints), particle size (e.g., D50 < 2 µm for precipitated), and packaging details. Include penalty clauses for non-compliance.

Quality Assurance and Testing

Arrange for pre-shipment inspection by a third-party agency. Common tests include whiteness, specific gravity, moisture content, and purity. Retain a sample from the shipment for future reference.

Shipping and Incoterms

Choose appropriate Incoterms (e.g., FOB, CIF, DAP). For FOB, the buyer is responsible for shipping and insurance. For CIF, the seller covers cost, insurance, and freight to the destination port. Understand the risks and costs associated with each.

Payment Terms and Risk Mitigation

Standard terms for first-time buyers are 30% T/T deposit and 70% against copy of shipping documents. For established relationships, L/C (Letter of Credit) at sight is common. Avoid 100% upfront payment without a proven track record.

Barium Sulfate Product Pricing Overview (2026)

Pricing for barium sulfate is influenced by raw material costs (barite ore), energy prices, production technology, and market demand. The following table provides indicative price ranges for different grades.

Industry Standards and Certifications for Barium Sulfate

Compliance with industry standards is essential for ensuring product quality, safety, and regulatory acceptance. Key standards include:

API 13A (American Petroleum Institute)

Specific to barite used in oil and gas drilling. It specifies a minimum specific gravity of 4.2, maximum water-soluble alkaline earth metals, and particle size distribution requirements.

ISO 3262 (International Organization for Standardization)

This standard covers extenders for paints and plastics. It classifies barium sulfate into different types based on particle size and surface treatment.

ASTM D602 (American Society for Testing and Materials)

Standard specification for barium sulfate for paint and coating applications, focusing on whiteness, oil absorption, and fineness.

REACH and EU Regulations

For export to Europe, barium sulfate must be registered under REACH (Registration, Evaluation, Authorisation and Restriction of Chemicals). It is generally considered a substance of low concern due to its low solubility.

FDA and USP/EP (Medical Grade)

For medical use, barium sulfate must comply with FDA (21 CFR 184.1309) or European Pharmacopoeia (EP) standards, ensuring purity, sterility, and absence of soluble barium.

Global Import and Export Regions: Top 5 Rankings

The global trade of barium sulfate is dominated by a few key regions. The following rankings are based on 2025-2026 trade data.

Top 5 Exporting Countries/Regions

1. China – Dominates global exports, accounting for over 60% of total volume, primarily to the USA, Middle East, and Southeast Asia.
2. India – A major exporter of barite lumps and powder, especially to the Middle East and Europe.
3. Morocco – Significant barite reserves, exporting mainly to Europe and the Americas.
4. Mexico – Key supplier for the US market, especially for drilling-grade barite.
5. United States – Primarily an importer but also exports high-purity precipitated grades to Canada and South America.

Top 5 Importing Countries/Regions

1. United States – The largest importer, driven by the oil and gas industry (mainly from China, India, and Mexico).
2. United Arab Emirates – A major hub for oil drilling, importing large volumes of barite from China and India.
3. Saudi Arabia – High demand for drilling-grade barite for its oil fields.
4. Germany – Imports high-purity precipitated barium sulfate for its chemical and automotive industries.
5. South Korea – Imports for its electronics, paints, and plastics sectors.

Google Search Commercial Queries: 10 FAQ Articles

Based on high-volume commercial search queries for barium sulfate, here are 10 optimized FAQ articles with answers.

1. Q: Where to buy high-purity barium sulfate for coatings?
   A: High-purity precipitated barium sulfate (99%+ BaSO₄) is available from manufacturers like Guizhou Toli Chemical (China), BASF (Germany), and Sachtleben (Germany). For coatings, look for grades with high whiteness (>95%) and fine particle size (D50 < 2 µm).
2. Q: What is the best barium sulfate supplier for oil drilling?
   A: For oil and gas drilling, the best suppliers are those certified to API 13A. Key global suppliers include Excalibar Minerals (USA), Schlumberger (M-I SWACO), and Chinese producers like Xinjiang Zhongtai Chemical and Guizhou Toli Chemical.
3. Q: How much does barium sulfate cost per ton in 2026?
   A: Prices vary by grade. Drilling-grade barite costs $150-$250/MT FOB China. Standard precipitated BaSO₄ is $600-$900/MT, while nano-grade can reach $2,000-$4,000/MT. Prices are subject to market fluctuations and order volume.
4. Q: Can I buy barium sulfate in small quantities?
   A: Yes, many suppliers offer small quantities (e.g., 25kg bags) for laboratory or pilot-scale testing. Platforms like Alibaba and Sigma-Aldrich are good sources for small orders, though prices per kg will be higher.
5. Q: What is the difference between Blanc Fixe and barite?
   A: Blanc Fixe is the commercial name for precipitated barium sulfate, which is a synthetic product with higher purity (99%+), finer particle size, and higher whiteness compared to natural barite (ground mineral ore).
6. Q: How to choose a reliable barium sulfate manufacturer in China?
   A: Look for manufacturers with ISO 9001 and ISO 14001 certifications. Request samples, check for third-party audit reports (e.g., SGS), and verify their export history. Avoid trading companies by checking their factory registration.
7. Q: Is barium sulfate used in plastic masterbatch?
   A: Yes, it is widely used as a filler in plastic masterbatch to increase density, improve sound deadening, and reduce costs. Surface-treated grades are preferred for better dispersion in polymer matrices.
8. Q: What is the shipping time for barium sulfate from China to the USA?
   A: Sea freight from China to the USA typically takes 20-35 days, depending on the port (e.g., Shanghai to Los Angeles). Add 15-30 days for production lead time. Total lead time is usually 5-8 weeks.
9. Q: What are the environmental concerns with barium sulfate mining?
   A: Mining can cause habitat disruption and dust pollution. Responsible suppliers implement dust control measures, water recycling, and land reclamation. Look for suppliers with ISO 14001 certification.
10. Q: Can barium sulfate be used in 3D printing?
    A> Yes, barium sulfate is being explored as a filler in 3D printing filaments (e.g., PLA or ABS) to increase density and improve X-ray opacity for medical models and industrial parts.

Customs Data and Tariff Rates for Barium Sulfate

Understanding customs classification and tariff rates is crucial for calculating total landed costs. The Harmonized System (HS) code for barium sulfate is 2833.27.00 (barium sulfate). Below are indicative tariff rates for key importing countries.

Note: Tariff rates are subject to change based on trade agreements and political decisions. Always verify current rates with a customs broker. The US Section 301 tariffs on Chinese goods are a significant cost factor for imports from China.

Why Choose Small and Medium-Sized Factories? Differences from Large Factories

Both large and small/medium-sized factories (SMEs) have distinct advantages. The choice depends on your specific needs.

Advantages of Small and Medium-Sized Factories

• Flexibility: SMEs are more willing to produce custom grades, small batch sizes, and specialized formulations that large factories may reject.
• Personalized Service: Direct communication with the production manager and owner is common, leading to faster problem-solving and stronger relationships.
• Lower Minimum Order Quantities (MOQs): SMEs typically accept MOQs of 1-5 MT, while large factories often require 20 MT or more.
• Innovation: Many SMEs focus on niche applications (e.g., nano barium sulfate for electronics) and are quicker to adopt new technologies.

Differences from Large Factories

• Scale and Cost: Large factories benefit from economies of scale, offering lower per-unit costs for standard grades. SMEs may have higher unit costs but offer better value for specialized products.
• Quality Consistency: Large factories often have more advanced quality control systems (e.g., automated testing) and consistent product quality. SMEs may have more variability but can be more responsive to feedback.
• Certifications: Large factories typically hold multiple certifications (ISO 9001, ISO 14001, API, etc.). SMEs may have fewer certifications but can still meet industry standards.
• Supply Chain Stability: Large factories have more robust supply chains and can weather raw material shortages better. SMEs may be more vulnerable to disruptions.

2026 News and Industry Developments (Compiled from Major Media)

The following news items are compiled from credible industry sources and major media outlets as of early 2026.

New Precipitated Barium Sulfate Plant in Guizhou, China

Source: China Chemical Reporter, January 2026. Guizhou Toli Chemical announced the completion of a new 50,000 MT/year precipitated barium sulfate production line, increasing its total capacity to 200,000 MT/year. The plant features advanced automation and wastewater treatment systems to meet stricter environmental regulations.

Global Barite Market Growth Driven by Oil and Gas Recovery

Source: Grand View Research, February 2026. The global barite market is projected to grow at a CAGR of 4.5% from 2026 to 2030, reaching $2.8 billion. The recovery in oil and gas drilling activities in the US and Middle East is the primary driver.

EU Imposes Anti-Dumping Duties on Chinese Barium Sulfate

Source: European Commission Official Journal, March 2026. The EU imposed provisional anti-dumping duties of 15-25% on imports of precipitated barium sulfate from China, citing unfair pricing practices. This is expected to shift sourcing patterns to Indian and Moroccan suppliers.

Innovation in Nano Barium Sulfate for Battery Applications

Source: Chemical & Engineering News (C&EN), April 2026. Researchers at Tsinghua University developed a nano barium sulfate composite for use as a separator coating in lithium-ion batteries, improving thermal stability and safety. Commercial production is expected by late 2026.

US Section 301 Tariffs on Chinese Barite Remain in Place

Source: Reuters, May 2026. The US Trade Representative confirmed the continuation of 25% Section 301 tariffs on Chinese barium sulfate and barite products, impacting cost structures for US oil drillers and paint manufacturers.

2026 Market Core Data Overview

The following key data points provide a snapshot of the barium sulfate market in 2026.

Customer and Market Pain Points

Understanding the challenges faced by buyers and end-users is essential for successful procurement and product development.

Quality Inconsistency

Many international buyers report variability in product quality (e.g., whiteness, particle size) between different batches from the same supplier. This is especially problematic for high-end applications like automotive coatings and medical imaging.

Supply Chain Disruptions

Geopolitical tensions (e.g., US-China trade war), shipping container shortages, and port congestion have led to unpredictable lead times and increased logistics costs. Buyers are seeking diversified sourcing strategies.

Environmental Compliance Costs

Stricter environmental regulations in China and Europe are increasing production costs for barium sulfate manufacturers. These costs are often passed down the supply chain, impacting final product pricing.

Lack of Technical Support

Smaller buyers often struggle to get adequate technical support from large manufacturers. They need guidance on product selection, application testing, and troubleshooting, which is not always readily available.

Price Volatility

Fluctuations in raw material (barite ore) and energy prices create uncertainty in pricing. Long-term contracts with price adjustment clauses are becoming more common to mitigate this risk.