Rutile Titanium Dioxide (R-298) | Industrial Pigment Grade

Are you seeking a high-purity source for Rutile TiO2 (Sulfate R-298) for advanced coating applications? Rutile Titanium Dioxide is the most stable and optically active crystalline form of $TiO_{2}$. Within the scientific and manufacturing communities, the 94% purity R-298 grade is a primary subject for researchers and engineers investigating refractive index optimization, photocatalytic stability, and the development of high-performance UV-resistant architectural finishes.

We provide technical-grade Sulfate R-298, verified via X-Ray Diffraction (XRD) and laser diffraction particle size analysis to ensure the high hiding power and dispersion efficiency required for industrial-scale manufacturing.

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Optical Properties & Technical Mechanism

R-298 is utilized as a sophisticated functional mineral to achieve maximum light interference. Material scientists utilize this pigment to explore:

• Refractive Index Maximization: Utilizing the high refractive index of the rutile crystal ($n \approx 2.7$) to optimize light scattering and achieve superior opacity in thin-film applications.

• UV Attenuation: Researching the compound’s ability to act as a band-gap semiconductor, absorbing and scattering harmful UV radiation to protect underlying polymer binders from photodegradation.

• Surface Treatment Chemistry: Investigating the Alumina ($Al_{2}O_{3}$) and Zirconia ($ZrO_{2}$) surface treatments applied to R-298 to enhance its chemical inertness and facilitate rapid dispersion in both aqueous and solvent-based systems.

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Primary Industrial & Research Applications

Rutile TiO2 R-298 serves as an essential material for several advanced technical domains:

• Architectural & Industrial Coatings: Serving as the primary opacifier for interior and exterior building finishes, ensuring long-term color retention and weatherability.

• Automotive Refinishing: Providing the high-gloss and brilliant whiteness required for premium vehicle coatings and protective clearcoats.

• Powder Coating Technology: Utilizing the fine particle size and uniform distribution of R-298 to ensure smooth, pinhole-free finishes in electrostatic applications.

• Specialty Aerospace Coatings: Exploring the role of high-purity $TiO_{2}$ in thermal control coatings and environments demanding extreme chemical resistance.

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Technical Specifications

Feature	Details
Crystal Form	Rutile
TiO2 Content	$\geq$ 94.0%
Production Process	Sulfate Process
Surface Treatment	Alumina, Zirconia, Organic
Refractive Index	2.73
Oil Absorption	18–22 g/100g
Brightness (L*)	$\geq$ 98.0

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Safety, Regulatory Status, and Procurement

Sulfate R-298 must be handled in accordance with industrial occupational health standards.

• Regulatory Compliance: R-298 grade meets standard industrial requirements for use in non-toxic coatings and is listed under REACH for chemical safety.

• Handling & PPE: Due to the risk of dust inhalation, the use of Personal Protective Equipment (PPE), including N95-rated respirators and eye protection, is mandatory during bulk handling and mixing.

• Storage: Store in a cool, dry, and well-ventilated warehouse. Keep containers sealed to prevent moisture absorption, which can affect the pigment’s dispersion properties.

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Why Source Through Licensed Industrial Channels?

• Verified Chromatic Consistency: Every batch is tested for tinting strength and undertone to ensure consistent color matching across production runs.

• Dispersion Reliability: R-298 is engineered for high-speed dispersibility, reducing energy consumption and processing time in the grind phase.

• Technical Documentation: Orders supported by batch-specific Certificates of Analysis (COA) and Safety Data Sheets (SDS).