He
4.0026 g/mol
Industrial ChemicalWarning
HELIUM
CAS7440-59-7EC231-168-5
Category
Industrial Chemical
Compound Class
n.a
Primary Use
Inert gas for industrial processes
Helium is a chemical element with the symbol He and atomic number 2. It is a colorless, odorless, non-toxic, inert, monatomic gas and the first in the noble gas group in the periodic table.
Inert gas for industrial processesCoolant in cryogenic applicationsGas for welding and shielding
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
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Related Compounds
Safety Reference
Warning
H280Contains gas under pressure; may explode if heated
H281Contains refrigerated gas; may cause cryogenic burns or injury
Regulatory Compliance1
- CN Catalogue of Hazardous ChemicalsCNRegulation
Customs Tariff Classification
The international HS code for HELIUM (CAS 7440-59-7) is 2804.29.
HS code (international, 6-digit)
2804.29
EU CN code (8-digit)
2804 29 10
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
IUPAC Name
helium
InChIKey
SWQJXJOGLNCZEY-UHFFFAOYSA-N
SMILES
[He]
Synonyms (25)
- E939
- HELIUM
- Q560
- Helium (USP)
- Atomic helium
- Element Helium
- Element-He
- HELIUM [MART.]
- He
- He (element)
- Helium (atomic)
- Helium 4
- Helium element
- Helium, Messer(R) CANGas
- Helium, compressed
- Hydridohelium(1+) ion
- INS NO.939
- O-Helium
- helio
- helium atom
- helium(0)
- p-Helium
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