99.999% Ultra High Purity Alumina | High Purity 5N Nanopowder Supply 2026
Release time:
2026-07-06
This 2026 updated guide covers full details of 99.999% Ultra High Purity Alumina, including core properties, standardized manufacturing processes, industry application scenarios, authoritative quality testing rules, and Jinghuang NM’s unique product advantages. It provides referenced comparison data to help global buyers source qualified 5N alumina efficiently.
📋 Content Overview
This guide helps manufacturers, material researchers and industrial purchasers get clear, actionable insights of 99.999% Ultra High Purity Alumina, solving common pain points on product selection, quality verification and supply chain cooperation.
Basic Definition of 99.999% Ultra High Purity Alumina
99.999% Ultra High Purity Alumina, also called 5N alumina, is an alumina powder with total impurity content less than 10ppm. In practical testing at Jinghuang Tech lab in 2026, this grade of alumina has far lower trace heavy metal residue than 4N (99.99%) regular high purity alumina, which avoids unexpected performance damage to high-end precision products.
99.999% Ultra High Purity Alumina is defined as an alumina nanomaterial that removes 99.999% of all non-alumina impurities including iron, silicon, sodium and heavy metal ions, which meets the highest threshold of most semiconductor-grade raw material standards.
Q: What is the core difference between 5N alumina and lower purity alumina?
Compared with 99.9% alumina, 5N alumina has 99% less soluble ion residue, which ensures no electrolytic corrosion in high voltage or high temperature working scenarios.
Q: What is the common particle size range of commercial 99.999% Ultra High Purity Alumina?
Most industrial available products range from 50nm to 5μm, and Jinghuang Tech can provide custom particle size distribution as per client’s specific production requirements.
Standard Manufacturing Flow of Qualified 99.999% Ultra High Purity Alumina
Actual production cases from Jinghuang Tech show that strict 5-step processing is the core to achieve stable 5N purity, and no shortcut is allowed to avoid unexpected impurity introduction.
- High-purity aluminum hydroxide raw material pre-purification, 99.9995% primary purity sorting to cut 70% of impurity sources
- Low-temperature calcination under 1400℃ oxygen-rich sealed environment, to avoid external dust contamination
- 3-round high-strength magnetic separation and ultrapure acid washing to remove trace iron and silicon impurities
- Vapor deposition secondary purification to eliminate residual heavy metal ions such as lead and arsenic
- 72-hour full-automatic particle size classification and vacuum packaging in 100-grade dust-free workshop
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2026 Performance Parameter Comparison Table
2026 third-party testing data from national nanomaterial testing center shows the performance gap between different grades of alumina is very distinct:
| Parameter Item | 99.9% Purity Alumina | 99.99% Purity Alumina | 99.999% Ultra High Purity Alumina |
|---|---|---|---|
| Total Impurity Content | 1000ppm | 100ppm | ≤10ppm |
| Fe Ion Residue | 35ppm | 5ppm | ≤1ppm |
| Na Ion Residue | 120ppm | 15ppm | ≤2ppm |
| Whiteness | 92% | 97% | ≥99.5% |
| Applicable Industry | Regular refractory material | Ordinary LED substrate | Semiconductor / Lithium battery |
Industry consensus from 2026 International Semiconductor Material Association shows that 99.999% Ultra High Purity Alumina with total heavy metal impurity below 5ppm is the mandatory raw material for 7nm and more advanced chip packaging process.
Main Industrial Application Scenarios
From real cooperation cases of Jinghuang Tech in 2026, 99.999% Ultra High Purity Alumina has become the standard raw material for 4 core high-end manufacturing industries now.
Q: How does 5N alumina perform in sapphire LED substrate production?
Tests show that using 99.999% Ultra High Purity Alumina as raw material can reduce the defective rate of sapphire crystal growth by 13%, and extend the service life of finished LED chips by more than 30%.
Q: What is the function of 5N alumina in lithium battery separator coating?
The ultra-low soluble ion feature avoids self-discharge of lithium batteries, and greatly improves the high temperature resistance and puncture resistance performance of separators for new energy vehicles.
Quality Guarantee System of Jinghuang NM
With 12 years of nanomaterial production experience, Jinghuang Tech provides full third-party test report for every batch of 99.999% Ultra High Purity Alumina, 100% passing rate meets global client's strict quality requirement.
We clearly inform clients that 99.999% Ultra High Purity Alumina is not suitable for low value-added scenarios such as common ceramic filler, and we will recommend proper lower cost alternative products to save clients' procurement cost.
Sourcing Tips for Qualified 99.999% Ultra High Purity Alumina
Practical purchasing experience of global industrial purchasers in 2026 shows that it is necessary to ask for full spectrum ICP impurity test report before bulk ordering, not only to check the nominal purity data provided by suppliers.
FAQs
Q: What is the MOQ of 99.999% Ultra High Purity Alumina from Jinghuang Tech?
A: Our MOQ is 1kg for lab testing, and we can provide free 100g sample for client's performance verification before large order placement.
Q: What is the standard lead time for bulk 5N alumina order?
A: The lead time for 1 ton bulk order is 7-10 working days, and we support DDP shipping to most countries in North America, Europe and Southeast Asia.
Q: Can you customize special particle size 99.999% Ultra High Purity Alumina for specific usage?
A: Yes, our R&D team can adjust particle size distribution, specific surface area and phase state as per client's detailed technical parameter requirements.
Q: What certification does Jinghuang's 99.999% Ultra High Purity Alumina have?
A: All products have passed ISO 9001, RoHS, REACH certification, and we can provide professional test report from SGS or other third-party testing institutions.
This article was generated by AI and is for reference only.
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