| CAS NO | 7440-59-7 |
| UN NO | 1963 |
| EINECS NO | 231-168-5 |
| Molecular weight | 4.0026 |
| Appearance | Colorless, odorless |
| Melting point | -272.2℃ |
| Boiling point | -268.60 ℃ |
| Density | 0.1786kg/cm3 |
| DOT Class | 2.2 |
| Label | Non-flammable Gas |
Helium, the least reactive element. Helium is normally a colorless, odorless gas and is the only substance that cannot solidify at standard atmospheric pressure.
Medical use: laser gas, or Ideal refrigeration gas for NMR superconducting magnets
Fill airships, balloons, thermometers, tubes, wetsuits and more
Check Analyse, such as helium mass spectrometer leak detector.
Shielding Gas
99.999% He, High Purity Grade
| Specification | 99.999% |
| Nitrogen | ≤ 2.0 ppm |
| Oxygen + Argon | ≤ 1.0 ppm |
| Hydrogen | ≤ 1.0 ppm |
| Carbon Monoxide | ≤ 0.5 ppm |
| Carbon Dioxide | ≤ 0.5 ppm |
| Neon | ≤ 1.0 ppm |
| Methane | ≤ 0.5 ppm |
| Moisture | ≤ 0.5 ppm |
99.9999% He, Ultra High Purity Grade
| Specification | 99.9999% |
| Nitrogen | ≤ 0.5 ppm |
| Oxygen + Argon | ≤ 0.2 ppm |
| Carbon Monoxide | ≤ 0.1 ppm |
| Carbon Dioxide | ≤ 0.1 ppm |
| Methane | ≤ 0.1 ppm |
| Moisture | ≤ 0.2 ppm |
*Other Grades and Purity Available on Asking
Package Information
| Cylinder Specifications | Contents | Pressure | ||
| Cylinder Capacity | Valve | Volume | bar | psig |
| 40L | CGA580 | 6 m3 | 150 | 2175 |
| 47L | CGA580 | 7 m3 | 150 | 2175 |
| 50L | CGA580 | 10 m3 | 200 | 2900 |
*Other Packages Available on Asking
Loading Reference
Advantanges
More than fifteen years on the market.
ISO certificate manufacturer & Stable raw material source.
On-line analysis system for gas quality control in every step, highly close to 100% pass rate.
Experienced DG International Shipping Team by sea & air.
