CAS No.: | 7440-59-7 |
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Formula: | He |
EINECS: | 231-168-5 |
Constituent: | Industrial Mixture |
Grade Standard: | Industrial Grade |
Chemical Property: | Non-Flammable Gas |
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Helium is a colorless, odorless, and tasteless monoatomic gas with an atomic weight of 4, a density of 1.78 g per 1 at 0°C and 1 atmosphere pressure. After hydrogen, helium is the most abundant element in the universe; these elements are believed to represent 76 and 23 percent, respectively, of all matter in the universe. The earth's atmosphere, however, contains only 5 ppm of helium.
He, Assay % | ≥99.9999 | 99.9999 | ||||||||
H2, ppm | ≤0.1 | <0.1 | ||||||||
O2, ppm | ≤0.2 | <0.2 | ||||||||
N2, ppm | ≤0.5 | <0.5 | ||||||||
CO, ppm | ≤0.1 | <0.1 | ||||||||
CO2, ppm | ≤0.1 | <0.1 | ||||||||
CH4, ppm | ≤0.1 | <0.1 | ||||||||
H2O, ppm | ≤0.5 | <0.5 |
1. Q: What are the main products that Amber Bridge supply?
A: We maindly supply speciality gases, stable isotopes, and betatron.
2. Q: What is your MOQ?
A: Normally we suggest that our customers to order one full container, however we prefer to our customers' demands.
3. Q: What is the advantage of your company?
A: Our company has professional team in gas area for more than 10 years.
4. Q: How long is the delivery time?
A: Our normal delivery date is 15-30 days after the order is confirmed.
5. Q: How do you make long term and good relation ship?
A: We appreciate and respect every customer as our friend, to supply them good quality products with reasonable prices. Also to provide them after sales service efficiently.
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