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Product Details:
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| Particle Refractive Index: | 2.741 | Specific Surface Area: | 21110 M²/kg |
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| Laser Obscuration: | 7.51% | Weighted Residual: | 3.04% |
BLR‑631 Rutile Titanium Dioxide Particle Size Report
1. Product Introduction
BLR‑631 is a rutile‑type titanium dioxide pigment with strictly controlled particle size distribution. It features uniform particle size, moderate specific surface area, and excellent dispersion stability. The optimized particle structure ensures high whiteness, strong hiding power, good gloss, and smooth processing performance. It is widely used in high‑end coatings, inks, plastics, and color masterbatch applications, providing stable product quality and excellent finished‑product appearance.
2. Particle Size Specification Table
| Item | Index |
| Particle Type | Rutile |
| Particle Refractive Index | 2.741 |
| Dispersant | Water |
| Dv(10) | 0.198 μm |
| Dv(50) | 0.298 μm |
| Dv(90) | 0.445 μm |
| D[4,3] | 0.311 μm |
| Span | 0.828 |
| Uniformity | 0.251 |
| Specific Surface Area | 21110 m²/kg |
| Laser Obscuration | 7.51% |
| Weighted Residual | 3.04% |
| Concentration | 0.0002% |
| Appearance | White powder |
3. Key Features & Advantages
• Narrow and uniform particle size distribution ensures excellent optical performance.
• Moderate median particle size (D50 = 0.298 μm) provides ideal hiding power and gloss.
• High specific surface area improves tinting strength and coloring efficiency.
• Good dispersion stability reduces agglomeration and ensures smooth film formation.
• Low span value indicates consistent particle size and stable batch quality.
• Suitable for high‑end applications requiring precise particle size control.
4. Recommended Applications
• High‑end architectural coatings
• High‑gloss inks & printing coatings
• Plastic masterbatch & profile products
• High‑performance industrial coatings
• Precision coloring systems
Notes:
Please feel free to contact us to obtain the detailed manual.
Qingdao Botian Chemical Co., Ltd belongs to Qingdao Tida International Trade Co., Ltd, founded in 2003,.After eighteen years of technological and scientific innovation and production line management, we have became the leading company of Titanium Dioxide products , PVC Paste Resin products production and international sales company.
Main products include over a dozen kinds of high-precision chemical products which are chloride process and sulphate process Titanium Dioxide,Titanium Oxychloride, Titanium Tetrachloride, High Titanium Slag, PVC Paste Resin, Caustic Soda etc. With a professional, tight, young technology R&D team, making the product has a high precision and purity of scientific evidence and quality guarantee.
Chinese claims that twelve years is a cycle .Botian & Tida in the past twelve years development science and technology .Always stick to the ideal of scientific benefit mankind, with exalted scientific attitude to the leading product innovation and research and development; Botian in the past twelve years of market development, adhere to the market demand, to work in front of our industy attitude and strict grasp market demand trend, be committed to develop diversified international market. talent firmly believe that honesty is well-being rich, credibility of natural upsurges, become industry leaders.
In the next years, Botian & Tida will continue moving steadily and firmly.Maintenance with the domestic large state-owned enterprises and Southeast Asia, North America and European countries the business relationship, At the same time we sincerely welcome and look forward to your arrival --TIDA’s new partner.
Respected science, the benefit of mankind, cooperation and innovation, sustainable win-win.
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Contact Person: Louis Liu
Tel: 13675620692
Fax: 86-532-89088579