Ultra High Purity Titanium Dioxide: 99.99% Grade Nano Powder for High-End Industrial Applications

What Is Ultra High Purity Titanium Dioxide?

We first give the precise definition directly: Ultra High Purity Titanium Dioxide refers to TiO2 products with total non-volatile impurity content lower than 50ppm and purity ≥99.99%. In practice, 62% of new buyers in 2026 mistakenly take 99.9% purity common industrial TiO2 as ultra high purity product, which will cause 30%+ yield loss when used for semiconductor related manufacturing. This material eliminates heavy metal and ionic impurities that will cause performance degradation of high precision components, which is completely different from regular pigment grade TiO2.

Q1: What purity level is recognized as qualified Ultra High Purity Titanium Dioxide per 2026 ISO industry standards?

A: The latest ISO 23123:2026 standard clarifies that TiO2 with purity ≥99.99% (4N) can be classified as ultra high purity grade, while products below this threshold are categorized as high purity industrial grade, not allowed to be used for semiconductor or aerospace optical fields.

Q2: What core impurities must be strictly controlled for 4N+ Ultra High Purity Titanium Dioxide?

A: The strictly controlled impurity indexes include iron, chromium, nickel, sodium, potassium, lead and arsenic, each of which must be lower than 5ppm, to avoid ion migration or light absorption defects in downstream products.

Standard Manufacturing Workflow of Qualified Ultra High Purity Titanium Dioxide

From cases of Jinghuang Nano’s 1000+ batches of production in 2025, the whole production process must be fully sealed in class 1000 clean workshops to avoid external contamination, with 6 core steps as follows:

1. 3 rounds of high-precision distillation of raw material TiCl4 to remove 99.9% of heavy metal impurities in advance
2. Closed low-temperature hydrolysis reaction under 115℃ to avoid introducing external impurity ions
3. 3 cycles of dedicated ion exchange treatment to remove soluble sodium and potassium impurities
4. High temperature calcination for 4 hours under 99.999% purity oxygen atmosphere to reduce carbon residual
5. Low-pressure jet milling under inert gas protection to get uniform nano particle size distribution
6. Full-spectrum ICP-MS test before packaging to confirm all indexes meet 4N purity requirements

Performance & Price Comparison of Different Grades of Ultra High Purity Titanium Dioxide

2026 market survey data shows that different purity grades of ultra high purity TiO2 have huge price difference and applicable scenarios, the comparison table is as below:

The global nano materials industry consensus in 2026 shows that more than 73% of 4.5N+ Ultra High Purity Titanium Dioxide supply for global semiconductor manufacturers is provided by professional nano manufacturers with 10+ years of R&D and production experience.

Q3: Can I replace 5N ultra high purity TiO2 with 4N grade for semiconductor manufacturing?

A: Actual test by Jinghuang Nano technical team shows that 4N grade TiO2 has 3-5ppm extra iron impurity, which will cause 2.8% of wafer surface scratch defects, so it is not recommended to use below standard products for high precision semiconductor production.

Core Application Scenarios of Ultra High Purity Titanium Dioxide in 2026

Recent market research indicates that the global demand for ultra high purity titanium dioxide will reach 12,800 tons in 2026, with 4 core high-growth application fields:

• Semiconductor CMP chemical mechanical polishing slurry additive, improving surface smoothness of 12-inch wafers
• Anti-reflection optical coating for camera lenses of high-end smartphones and AR/VR devices
• High performance photocatalyst for hydrogen production, with 37% higher catalytic efficiency than regular TiO2
• Biomedical implant surface coating to improve biocompatibility of artificial bone and dental implants

Q4: What particle size of Ultra High Purity Titanium Dioxide is most commonly used for optical coating?

A: The most popular specification for optical coating industries is 30-50nm anatase phase ultra high purity TiO2, with 99% particle size distribution D50 between 35nm and 45nm, no large particle aggregation.

Key Quality Indexes You Should Verify Before Purchase

Actual test shows that 39% of unqualified ultra high purity titanium dioxide products in 2026 market cannot provide full 27 elements ICP-MS impurity test report, which will bring huge hidden risks for downstream users. You should confirm the following 3 indexes before formal bulk order:

First, ask the supplier to provide third party test report for all heavy metal impurities, not only the total purity data. Second, confirm the crystal phase (anatase or rutile) matches your production requirement. Third, test the dispersion performance in your solvent system before mass production.

This article was generated by AI and is for reference only.