Address
E02 No.509 Floor 5 Unit3 Building1 No.1700 Tianfu Avenue North Section High-tech district Chengdu City Pilot Free Trade Zone China(Sichuan)
Work Hours
Monday to Friday: 9AM - 6PM
Weekend: 10AM - 5PM
Address
E02 No.509 Floor 5 Unit3 Building1 No.1700 Tianfu Avenue North Section High-tech district Chengdu City Pilot Free Trade Zone China(Sichuan)
Work Hours
Monday to Friday: 9AM - 6PM
Weekend: 10AM - 5PM
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 is a colorless, odorless, odorless, and gaseous atmospheric gas at normal temperature with the lowest critical temperature. It is the most difficult gas to liquefy found in nature. Ammonia gas has very low chemical activity and cannot be burned or combustible. Helium in the air is about 5.2 parts per million and can theoretically be extracted from the air, but it is so thin that it is expensive to separate. Liquid helium can be used for ultra-low temperature cooling with its low boiling point of -268.9 ℃.
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 |
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 |
Cylinder Capacity | Valve | Volume | bar | psig |
---|---|---|---|---|
40L | CGA580 | 6 m3 | 150 | 2175 |
47L | CGA580 | 7 m3 | 150 | 2175 |
50L | CGA580 | 10 m3 | 200 | 2900 |