Helium-3 He3
Providing the rarest gas wherever you are
Helium-3, an essential molecule
3He is a light and non radioactive isotope of helium, obtained from the natural decay of tritium. Because of that, it is extremely rare. Helium-3 has a wide range of applications.
Air Liquide is the helium 3 supplier you need
Due to its extreme cooling properties and unique atomic structure, Helium-3 is a critical molecule driving innovation in the world's most advanced sectors.
As a recognized partner of He3 end-users, we provide a reliable supply of different Helium-3 purity grades, tailored to support your projects with efficiency and competitiveness.
Key benefits of our Helium-3 offer:
- Flexible packaging: On-demand packaging sizes and customized filling volumes per cylinder, ranging from 0.4L to 5L (B04, B1, and B5 sizes).
- Customized logistics: Full supply chain handled by Air Liquide for fast, seamless delivery with a 2 to 4 weeks total lead time.
- Exceptional purity: Guaranteed 3He isotopic enrichment above 99.9% and chemical purity level of 99.995% minimum.
Technical specifications (other options available upon request)
| Component | Description | Content |
| Chemical purity | Volume fraction | ≥ 99.995 % |
| 3He Isotopic enrichment | Volume fraction | > 99.9% |
| N2 | Volume fraction | ≤ 6 ppm |
| CO | Volume fraction | ≤ 6 ppm |
| O2 | Volume fraction | ≤ 6 ppm |
| Ar | Volume fraction | ≤ 6 ppm |
| CO2 | Volume fraction | ≤ 6 ppm |
| H2 | Volume fraction | ≤ 6 ppm |
| C2H6 | Volume fraction | ≤ 6 ppm |
| CH4 | Volume fraction | ≤ 6 ppm |
| 3H2 | Tritium Activity | < 100 Bq/g |
Our Helium-3 offer
| Cylinder Size | B04 | B1 | B5 |
| Water Volume | 0,4L | 1L | 5L |
| Maximum Gas contained | 20L | 80L | 500L |
| Cylinder material | Aluminium | Aluminium | Aluminium |
| Valve material | Brass | Brass | Brass |
| Valve type | CGA580 | CGA580 | CGA580 |
| Height | 242mm | 335mm | 530mm |
| Diameter | 60mm | 81mm | 140mm |
| Opening Diameter | 30mm | 36mm | 52mm |
| Certification | TPED+DOT | UN(USA) + TPED or TPED/DOT | TPED + UN(USA) |
Frequently Asked Questions (FAQ)
Why choose Air Liquide for high-purity Helium-3 supply?
We guarantee exceptional purity for your most demanding projects, with an isotopic purity level greater than 99.9% and a chemical purity level of at least 99.995%.
Can Air Liquide adapt its Helium-3 packaging to specific volume needs?
Yes, we provide a flexible and seamless solution with on-demand packaging sizes. We supply several cylinder options, from 0.4L to 5L, to perfectly match your needs.
How does Air Liquide ensure reliable and fast Helium-3 delivery?
Air Liquide developed strong supply chain solutions to be able to deliver 3He globally with an overall total lead time of only 2 to 4 weeks.
Quantum computing
Helium-3 is essential to reach temperatures close to absolute zero (boiling temperature of 3.19K or -270°C). This extreme cooling enables quantum computers to operate and process exponentially more data than classical computers, accelerating discoveries in new drugs, materials, and cyber defense.
Dilution refrigerators and science
Scientists rely heavily on Helium-3 for its cooling power within dilution refrigerators. Achieving near-absolute-zero temperatures drastically reduces noise and interference in complex calculations, such as dark matter research.
Neutron detection and security
As a highly reactive agent, Helium-3 is widely used for neutron detection in particle physics and material science. It is also the standard molecule used in security gates to detect radioactive materials and ensure global border security
Aneutronic fusion
While still at an experimental stage, aneutronic fusion represents the next generation of power supply. Driven by aneutronic reaction schemes, Helium-3 acts as a clean fuel to deliver highly efficient, less costly energy without long-term nuclear waste
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