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Ultra-high purity (>99.9% BaCO₃), minimizing trace metal impurities that could affect color stability or catalytic side reactions.
Consistent particle size distribution for optimal dispersion and rheological performance in demanding pigment systems.
Low soluble alkali content, enhancing compatibility with acid-sensitive binders and reducing gelation risk in aqueous formulations.
Controlled surface chemistry enabling superior interfacial adhesion in polymer composites and ceramic glazes.
ISO 9001-certified manufacturing process ensuring batch-to-batch reproducibility and regulatory compliance.
High-performance ceramic glazes requiring thermal stability and low discoloration at firing temperatures up to 1250°C.
Electroceramic dielectrics where high resistivity and controlled sintering behavior are critical.
Pigmented polypropylene and PVC compounds for automotive interior trim and durable consumer goods.
Specialty glass formulations for optical clarity and UV resistance in architectural and display applications.
Functional fillers in flame-retardant cable jacketing compounds leveraging inherent thermal decomposition properties.
| Chemical Type | Barium carbonate (BaCO₃) |
| Product Form | Fine white powder |
| Appearance | White, free-flowing crystalline powder |
| BaCO₃ Content (min.) | 99.9 wt% |
| Loss on Ignition (LOI, 950°C) | 7.3–7.7 wt% |
| Particle Size (D₅₀) | 1.8–2.2 µm |
| Soluble Alkalis (as Na₂O, max.) | 0.02 wt% |
| Heavy Metals (Pb, Cd, Hg, Cr⁶⁺) | Compliant with EU RoHS & REACH |
Q1: What distinguishes BM040 from standard barium carbonate pigments?
A: BM040 is specifically engineered for pigment applications requiring exceptional chemical purity, narrow particle size distribution, and superior dispersibility in polymer and coating systems. Its high purity minimizes interference with color development and thermal stability during processing.
Q2: Is BM040 suitable for use in food-contact plastics?
A: BM040 is not intended for direct food-contact applications unless explicitly approved by the relevant regulatory authority and validated within the final formulation. Customers must conduct full compliance assessments—including extractables testing—based on their specific end-use conditions and applicable regional regulations.
Q3: How should BM040 be incorporated into thermoplastic compounds?
A: For optimal dispersion, BM040 is typically introduced via masterbatch or side-feeding during compounding. It performs well under standard extrusion conditions, though residence time and shear profile should be optimized to maintain pigment integrity and avoid agglomeration.
Q4: Does BM040 exhibit good thermal stability during high-temperature processing?
A: Yes — BM040 demonstrates robust thermal stability up to typical polymer processing temperatures (e.g., polyolefins and engineering thermoplastics), with minimal decomposition or discoloration when used within recommended dosage ranges and processing windows.
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E-mail: wangxingqiang@ericwchem.com
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Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China
