About Helium
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Helium
Product Name: Helium
Synonyms:91018 Add
CAS RN.: 71086-78-7;7440-59-7
EINECS: 275-187-7 Molecular Weight: 4.002602 Molecular Formula: He Density: 0.1785(0℃) Melting Point(℃): -272.3℃ Boiling Point(℃): -268.9℃ Hazard Symbols: Add Details Risk Codes: Add Details Safety Description: Add Details
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