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71086-78-7 Helium

product Name Helium
CAS No 71086-78-7;7440-59-7
Molecular Formula He
Molecular Weight 4.002602
InChI InChI=1S/He
EINECS 275-187-7
Molecular Structure 71086-78-7;7440-59-7 Helium
Density 0.1785（0℃）
Melting point -272.3℃
Boiling point -268.9℃

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