helium（He）
The company has fully passed IS09001:2000 quality system certification. With a number of technical talents with professional background in the gas industry, it has established business lines at home and abroad, with an annual turnover of about 50 million yuan.
Category:
Keywords: Oxygen 丨 Nitrogen 丨 Argon 丨 Hydrogen
Consultation:
Product Description
Molecular weight: 4.0026 g/mol
Relative vapor density (air = 1): 0.14
Relative density (water = 1): 0.15
CAS number: 7440-59-7
Areas of use: optical fiber, laser, welding and cutting, diving breathing, low-temperature superconductivity, pressurization, cleaning, leak detection, protective gas, balloons, airships, etc.
source
The main source of gas is natural gas wells, which are obtained through liquefaction extraction. Due to the shortage of helium in nature, many applications recover helium through recycling systems.
application
1. Helium is an inert gas, which is the gas most difficult to dissolve in liquid, so it is used as a pressurized gas and a cryogenic Rocket propellant in space missile applications
2. Helium is inert and used as a component in neutral atmospheres, such as in heat treatment applications that require atmospheric protection
3. Helium, as an inert gas for arc welding, is widely used in the welding industry. It is used in conjunction with helium (leak) detectors to test the integrity of manufactured components and systems.
4. Using helium as a composite cooling and shielding medium for fiber drawing
5. Helium is used to cool uranium rods in nuclear reactors
6. Helium is used as a buffer or carrier gas for various types of gas lasers
7. The gas mixture of helium and carbon hydride is also used as a filling gas for nuclear counters
8. A mixture of helium, neon, and argon is used to fill electronic tubes
9. Various mixtures of helium and oxygen are used as breathing gases for divers. Using helium instead of nitrogen to dilute oxygen can prevent nitrogen from melting in the bloodstream.
10. Helium is used to fill large balloons in the upper atmosphere and for cosmic ray research, and weather forecasters use helium balloons to carry meteorological instruments
11. Due to its non combustible and low density, it can also be filled with toy balloons (in a nitrogen mixture), aircraft tires, etc
12. Helium mixture containing hydrocarbons used for flushing detection β、 y. X-ray counter
13. Helium is used as a propellant in "helium cannons" used in model launch tunnels, such as the working gas of some hypersonic wind tunnels
14. In various semiconductor processes, helium is used as a carrier gas or purge gas
15. Helium is used as a calibration gas and equilibrium gas in calibration mixtures, and also as a carrier gas in gas chromatography
16. Helium used for vacuum crushing in heat treatment furnaces
17. Helium used for airbag inflation
In special glass processing and precious metal processing, helium is used to manufacture inert furnace gases.
19. Helium gas used for degassing in high-performance liquid chromatography
20.In nuclear magnetic resonance, liquid helium is used to cool superconducting magnets for analytical or medical purposes
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project |
index |
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Industrial Helium |
Pure helium |
High purity helium |
Ultrapure helium |
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Helium (He) purity (volume fraction) / 10-2 ≥ |
97.5 |
99 |
99.99 |
99.995 |
99.999 |
99.9999 |
|
Neon gas (Ne) content (volume fraction) / 10-6< |
One |
One |
40 |
15 |
4 |
1 |
|
Hydrogen (H2) content (volume fraction) / 10-6< |
One |
One |
7 |
3 |
1 |
0.1 |
|
(Oxygen (O2) + argon (Ar)) content (volume fraction) / 10-6< |
One |
One |
5 |
3 |
1 |
0.1 |
|
Nitrogen (N2) content (volume fraction) / 10-6< |
One |
One |
25 |
10 |
2 |
0.1 |
|
Carbon monoxide (CO) content (volume fraction) / 10-6< |
One |
One |
1 |
1 |
0.5 |
0.1 |
|
Carbon dioxide (CO2) content (volume fraction) / 10-6< |
One |
One |
1 |
1 |
0.5 |
0.1 |
|
Methane (CH4) content (volume fraction) / 10-6< |
One |
One |
1 |
1 |
0.5 |
0.1 |
|
Moisture (H2O) content (volume fraction) / 10-6< |
One |
One |
20 |
10 |
3 |
0.2 |
|
Total impurity content (volume fraction) / 10-6≤ |
One |
One |
100 |
50 |
10 |
1 |
|
Total impurity content (volume fraction) / 10-2≤ |
2.5 |
1 |
One |
One |
One |
One |
Molecular weight: 4.0026 g/mol
Relative vapor density (air = 1): 0.14
Relative density (water = 1): 0.15
CAS number: 7440-59-7
Areas of use: optical fiber, laser, welding and cutting, diving breathing, low-temperature superconductivity, pressurization, cleaning, leak detection, protective gas, balloons, airships, etc.
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