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Product Name : | helium | Purity: | 99.999%(5N) |
CAS No | 7440-59-7 | EINECS No | 231-168-5 |
MF: | He | Molar mass | 7440-59-7.mol |
UN No.: | 1046 | Hazard Class | 2.2 |
Appearance: | colorless | Odor | odorless |
Inspection item | unit | Purity |
helium | % | 99.999 |
O2 | ppmv | ≤1.0 |
N2 | ppmv | ≤2.0 |
CO2 | ppmv | ≤0.5 |
CO | ppmv | ≤0.5 |
CO2+CO | ppmv | |
CH4 | ppmv | ≤0.5 |
Water | ppmv | ≤3.0 |
H2 | ppmv | ≤1.0 |
Ne | ppmv | ≤4.0 |
Cylinder Size | DOT/50 L | DOT/47L | 40L | 10L | 4L | ||||
Valve | CGA 580/DISS 718/JIS W21-14L/BS 341 NO.3/DIN477 NO.6 |
He | Typical Application | ||||||
1 | Used in a variety of analytical instruments, it is most commonly used as a carrier gas for gas chromatography. | ||||||
2 | As a heat transfer material. | ||||||
3 | Used to configure the mixture. | ||||||
4 | As part of the laser gas. | ||||||
5 | Used as a carrier gas or a purge gas in a semiconductor. | ||||||
6 | Mixture with hydrocarbons for the detection of a, b, g and X-rays. | ||||||
7 | Mix with oxygen and use it as a breathing gas. |