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Helium

   

Helium
Symbol: He
Number: 2
Element category: Noble gases
CAS number: 7440-59-7
Standart atomic weight:
4,002602
Density: 0,1785 kg/m3
Hardness: - - -
Melting point:
-272,2°C (-458°F)
Boiling point:
-269°C (-452°F)

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Helium gas 99,999% amouple
Helium gas 99,999% amouple

High purity Helium gas in ampoule under vacuum. Please check our "ampoule tester" for illumin..

Helium gas ball 99,999%
Helium gas ball 99,999%

Diameter approx 6cm Limited quantity available!! ..