Understanding the TiO2 CAS Number: Why It Matters in Today's Industry

If you’ve ever flipped through a materials safety sheet, you probably saw the term "TiO2 CAS number" and wondered what it meant. Titanium dioxide (TiO₂) is everywhere—from paints and plastics to sunscreens and food additives—and its chemical identification is critical for regulation, quality control, and global trade. The CAS (Chemical Abstracts Service) number simply serves as a unique identifier for TiO₂, helping industries and regulators communicate precisely about this essential compound. But beyond the label, understanding TiO2 and its CAS number unlocks insights into its environmental impact, safety standards, and the innovations shaping sustainable manufacturing worldwide.

Globally, titanium dioxide production is booming—expected to surpass 8 million metric tons by 2025—driven largely by the demand in construction, automotive, and consumer goods. Having a consistent reference like the TiO2 CAS number ensures that every stakeholder, from chemical engineers to policy makers, stays on the same page regarding the type, purity, and safety profile of the material they handle.

Mini takeaway: The TiO2 CAS number isn’t just a series of digits—it’s a universal handshake that underpins safety, compliance, and innovation across industries worldwide.

Why the TiO2 CAS Number Is So Crucial in a Globalized Market

Titanium dioxide ranks as the world's most widely used white pigment, and its CAS number (13463-67-7) acts like a global barcode. According to the United Nations Industrial Development Organization (UNIDO), titanium dioxide is critical in the manufacturing supply chains of over 70 countries. This diversity in production and consumption means standardization is no luxury—it’s a necessity.

Oddly enough, while TiO₂ itself is ubiquitous, confusion often arises when different grades or nanoparticle forms enter markets. The CAS number clears this fog by pinpointing the exact chemical substance, helping customs, researchers, and manufacturers avoid costly delays or mislabeling. For instance, the global push toward stricter environmental controls, including those outlined by ISO and the EU REACH regulation, demands precise chemical identification to ensure the right safety documents and testing accompany shipments.

Mini takeaway: The TiO2 CAS number enables seamless global commerce and stringent safety adherence in one tidy package.

What Exactly Is the TiO2 CAS Number?

To put it simply: the TiO2 CAS number is 13463-67-7, which uniquely identifies pure titanium dioxide. CAS numbers were created to solve a massive indexing problem—chemicals often have multiple names, synonyms, or local designations, creating confusion. The CAS Registry, maintained by the American Chemical Society, assigns a unique number to each substance, making sure we're talking about the same material no matter the language or locale.

Titanium dioxide itself is a naturally occurring oxide of titanium widely used for its brightness and high refractive index. Modern industries—from paper to sunscreen development—depend on TiO₂ because it efficiently scatters light, boosting whiteness and opacity. It also has a role in humanitarian contexts, for example, in environmentally safe pigments used in shelters or medical devices during disaster recovery.

Mini takeaway: TiO2 CAS number 13463-67-7 is the industry’s passport for titanium dioxide's identity and safety assurance.

Core Attributes of Titanium Dioxide Identified Through Its CAS Number

1. Chemical Purity

The CAS number confirms the chemical formula and purity of titanium dioxide, which directly influences its effectiveness. High purity levels (over 99%) are required for sensitive applications, such as in pharmaceuticals or food-grade products.

2. Particle Size and Form

Not all TiO₂ is the same. Variants exist as powders, pigments, or nanoparticles. The CAS number corresponds to the bulk compound but additional identifiers are necessary for nanoforms used in cutting-edge technologies or UV protection.

3. Safety & Regulatory Compliance

The CAS number links TiO₂ to existing safety profiles and regulatory guidance, such as OSHA limits or REACH restrictions. It ensures proper labeling and handling instructions are followed, reducing risk in industrial settings.

4. Compatibility Across Industries

From coatings and plastics to food colorants, the CAS number assures users they can mix or substitute TiO₂ grades seamlessly without risking product failure due to chemical impurities or inconsistent properties.

5. Environmental Impact

Understanding the CAS number aids tracking TiO₂'s environmental footprint, encouraging safer production methods and the transition to sustainable uses, such as photocatalytic waste treatment.

Mini takeaway: The TiO2 CAS number isn’t just about ID—it’s a gateway to understanding quality, safety, and application suitability.

Global Applications: Real-World Use Cases of TiO2 CAS Number Utilization

TiO₂ finds itself in a surprising range of products and regions. For example, in Asia-Pacific construction markets, titanium dioxide pigments brighten paints used on public infrastructure, helping reflect heat and reduce energy consumption in buildings. In Europe, adherence to the TiO2 CAS number ensures imports meet strict regulatory standards for cosmetics and food additives.

Post-disaster relief agencies employ pigments verified by CAS numbers to produce safe, long-lasting materials for emergency shelters. Even the automotive industry relies on TiO₂'s CAS number to source compatible coatings that resist weathering and UV degradation.

Mini takeaway: Industries across continents rely heavily on the TiO2 CAS number to maintain trust, quality, and environmental responsibility.

Why TiO2’s CAS Number Still Holds Value in Sustainability & Innovation

Looking at TiO₂ through the lens of its CAS number reveals a material that’s not just a pigment but a foundation for greener tech. Many manufacturers now track specific CAS-registered TiO₂ grades optimized for low emissions or safer nanoparticle formulations.

This focus translates into lower waste, energy efficiency, and improved worker safety—meeting both emotional and logical calls for responsible industry. What’s more, the stability and non-toxic profile tied to the CAS-identified substance means long-term product reliability, building trust between producers and consumers alike.

The Future: Advancements Shaping TiO2 and Its Identification

Innovation is pushing boundaries. Research into bio-inspired TiO₂ composites targets both higher efficiency and lower environmental impact. Digitization is improving traceability by linking CAS numbers to blockchain records, ensuring authenticity in global supply chains.

Meanwhile, regulatory bodies worldwide update safety thresholds based on nanoparticle research—knowledge that always ties back to CAS numbers for clarity. Automation and AI in chemical manufacturing increasingly depend on clear chemical identifiers like the TiO2 CAS number to optimize formulations and reduce defects.

Common Challenges & How Industry Experts Address Them

Despite its strengths, challenges exist. One issue is the ambiguity when TiO₂ nanoparticles have different safety profiles from bulk TiO₂ but share the same CAS number, creating potential regulatory gray areas. Manufacturers and regulatory bodies are responding with supplementary identifiers and advanced testing.

Another challenge is inconsistent global standards—though the CAS number ensures chemistry is consistent, interpretation of safety data can differ between regions. Collaborative international initiatives are increasingly aligning these differences.

Frequently Asked Questions About TiO2 CAS Number

• Q: What exactly does the TiO2 CAS number represent?
  A: It’s a unique numeric identifier (13463-67-7) assigned to titanium dioxide for unambiguous chemical recognition globally, helping ensure consistent quality, safety, and regulatory compliance across industries.
• Q: Can the CAS number differentiate between nanoparticle TiO2 and bulk forms?
  A: The standard CAS number covers bulk TiO2; however, nanoparticles sometimes require additional identifiers or regulatory classifications due to differing properties and safety concerns.
• Q: How does the TiO2 CAS number improve international trade?
  A: By providing a universally accepted chemical ID, it reduces confusion and complies with customs, safety, and environmental laws, streamlining import/export processes.
• Q: Is the TiO2 CAS number relevant in environmental sustainability initiatives?
  A: Absolutely. Categorizing TiO₂ precisely helps track environmental impact and supports safer product innovations like low-emission pigments and photocatalysts.
• Q: Where can I confirm the official TiO2 CAS number?
  A: Trusted sources include the American Chemical Society’s CAS Registry and recognized chemical databases like PubChem or tio2 cas number official listings.

Wrapping Up: Why You Should Care About the TiO2 CAS Number

The TiO2 CAS number is so much more than a technical detail. It’s a key that unlocks clearer communication, safer products, and smarter sustainability across countless products and regions. Keeping tabs on this number ensures trust between manufacturers, regulators, and consumers alike, driving innovation and environmental stewardship for years to come.

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Product Specification Table: Typical Rutile TiO2

Vendor Comparison: Leading Titanium Dioxide Suppliers

So, whether you’re an engineer ensuring a new paint formulation performs perfectly, or a regulatory specialist tracking compliance documentation, the TiO2 CAS number is undeniably central to your work. I find it fascinating how such a simple numeric code can connect so many dots—from factory floor to global markets, and increasingly, into the future of sustainable industry.

References & Further Reading

1. Wikipedia: Titanium Dioxide
2. ISO Standards relevant to pigments
3. UNIDO Reports on Chemical Industry Trends