Optical Grade Precipitated Barium Sulfate BaSO4 Industrial Filler for Electronic and Pharmaceutical Applications
Price:
Please contact customer service
MOQ:
10Tons
Delivery Time:
About six weeks
Brand:
SiChun HongJian
Product Description
Precipitated Barium Sulfate BaSO4 98% Purity Industrial Filler
Product Overview
High Purity Precipitated Barium Sulfate
Hongjian Chemical's High Purity Precipitated Barium Sulfate adopts a precision synthesis process of "barium carbonate-sulfuric acid method", utilizing a twelve-stage purification process and crystal morphology control technology to create high-end functional powder with international competitiveness.
Aliases: High Purity Barium White, Optical Grade Barium Sulfate
English Name: High Purity Precipitated Barium Sulfate
Chemical Formula: BaSO₄
Molecular Weight: 233.39
CAS Number: 7727-43-7
Key Properties: Nano-grade dispersibility (d50=0.3-0.8μm controllable), laser-grade whiteness (98.5%-99.5%), SEM-grade purity (99.95%-99.99%), blue phase optimization (b-value ≤1.0)
Cutting-Edge Application Fields
1. Optical Grade Coating Systems
- High-End Automotive Topcoats: Replaces 20%-30% titanium dioxide, simultaneously improves hiding power and distinctness of image (DOI ≥95), paint film gloss ≥95GU.
- Electronic Display Coatings: Used for functional coatings like polarizers, brightness enhancement films, transmittance >91%, haze <1.5%.
- Optical Lens Coatings: Nano-grade product (d50=0.15±0.05μm) for AR/VR lens anti-reflection coatings, adjustable refractive index 1.64-1.68.
2. Electronic Materials Field
- Chip Packaging Materials: Ultra-high purity grade (99.99%) for epoxy molding compounds, alpha ray emission <0.01 count/cm²*h, thermal conductivity >1.2 W/m*K.
- Circuit Board Inks: Special grade for photoresist solder masks, UV transmittance >98%, line resolution up to 25μm.
- Battery Separator Coatings: Nano-spinning grade product for ceramic separator coatings, thermal shrinkage (130°C) <1%.
3. High-End Polymer Systems
- Optical Grade Engineering Plastics: For PC/PMMA alloys, transmittance retention >98%, yellow index change <0.3.
- Medical Polymers: USP/EP dual certification grade, biocompatibility test passes ISO10993 standard, used for medical catheters, implant devices.
- Transparent Masterbatch: Replaces glass microspheres in transparent PP/PS products, haze increase <3%, tensile strength improvement 15%.
4. Precision Instruments & Research
- Standard Whiteness Panels: NIST traceable reference material, whiteness value 99.5%±0.2%, for colorimeter calibration.
- Electron Microscope Standards: Monodisperse spherical product, particle size deviation <3%, for SEM/TEM instrument calibration.
- Analytical Reagents: Ultra-high purity grade for ICP-MS, total 67 metal impurities <1 ppm.
Technical Specification System
Grade Classification Standard
| Indicator Item | Optical Grade | Electronic Grade | Pharmaceutical Grade | Research Grade |
|---|---|---|---|---|
| BaSO₄ Purity | ≥99.9% | ≥99.95% | ≥99.8% | ≥99.99% |
| Whiteness (ISO) | ≥98.5% | ≥97% | ≥96% | ≥99.5% |
| d50 Particle Size | 0.3-0.5μm | 0.5-0.8μm | 0.8-1.2μm | 0.1-1.0μm adjustable |
| Impurity Fe₂O₃ | ≤0.0005% | ≤0.0002% | ≤0.001% | ≤0.0001% |
| Impurity SiO₂ | ≤0.002% | ≤0.001% | ≤0.005% | ≤0.0005% |
| Conductivity (μS/cm) | ≤50 | ≤20 | ≤100 | ≤10 |
| Oil Absorption (g/100g) | 18-22 | 16-20 | 20-25 | 15-25 adjustable |
Advanced Testing Capabilities
- Laser Particle Size Analysis: Malvern Mastersizer 3000, detection range 0.01-3500μm
- Whiteness Measurement: BYK Gardner spectro-guide, d/8 geometry, includes UV component
- Trace Elements: Agilent ICP-MS 7900, detection limit reaches ppt level
- Morphology Analysis: FEI SEM, resolution 1.2nm
Technological Innovation Highlights
Crystal Morphology Control Technology
- Cubic Crystal System Control: Aspect ratio 1.0-1.2, improves packing density and flowability
- Spheroidization Treatment: Sphericity >0.95, reduces system viscosity
- Surface Microstructure Control: Nano-scale surface roughness <5nm, optimizes light scattering performance
Surface Engineering Platform
- Silane Grafting Technology: Functional group grafting rate >85%, contact angle with organic phase <30°
- Plasma Treatment: Surface energy adjustment range 35-65 mN/m
- Biomimetic Modification: Phospholipid bilayer modification, biocompatibility improved 3 times
Intelligent Manufacturing System
- Fully Automatic pH Precision Control: Fluctuation range ±0.05
- Online Laser Particle Size Monitoring: Real-time feedback to adjust crystallization parameters
- AI Optimization System: Predicts product performance based on machine learning
Professional Service Support
Application Development Laboratory
- Free Sample Testing: Provides 500g customized samples and application evaluation reports
- Joint Development Projects: Co-build product development platforms with customers, share technical achievements
- Simulation Services: Simulates filler distribution in systems via Materials Studio
Technical Training System
- Regularly holds "High-End Filler Application Technology Seminars"
- Provides online technical course "Applications of Barium Sulfate in Advanced Materials"
- Compiles "High Purity Barium Sulfate Application Technology Guide" series manuals
Quality Assurance System
- ISO 17025 certified laboratory
- Each batch provides 26-item full indicator test report
- Establishes product lifecycle traceability system
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Get in Touch
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Company
Sichuan Hongjian Xinyi Technology Co., Ltd.
Location
604, 6th Floor, Unit 2, Building 1, No. 9 Vanke Road, Chenghua District, Chengdu
Contact Person
Leo Yang