Kr
83.8 g/mol
Industrial ChemicalWarning
KRYPTON
CAS7439-90-9EC231-098-5
Category
Industrial Chemical
Compound Class
n.a
Primary Use
noble gas for lighting
Krypton is a chemical element with the symbol Kr and atomic number 36. It is a colorless, odorless noble gas that occurs in trace amounts in the atmosphere, and it is chemically inert.
used in fluorescent lampsused with other rare gases in lighting
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
ReferenceSame Category
Lithium
CAS7439-93-2
Battery manufacturing and metallurgy additive
ReferenceSame Category
Magnesium
CAS7439-95-4
Metal for alloys and reducing agent
ReferenceSame Category
Manganese
CAS7439-96-5
Steel production additive
ReferenceSame Category
Mercury
CAS7439-97-6
Chlorine and caustic soda production
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 KRYPTON (CAS 7439-90-9) is 2804.29.
HS code (international, 6-digit)
2804.29
EU CN code (8-digit)
2804 29 90
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
krypton
InChIKey
DNNSSWSSYDEUBZ-UHFFFAOYSA-N
SMILES
[Kr]
Synonyms (20)
- KRYPTON
- Q888
- 36Kr
- Atomic Krypton
- Element Krypton
- Element-Kr
- KRYPTON, ELEMENTAL
- Kr (element)
- Krypton (atomic)
- Krypton element
- Krypton, Messer(R) CANGas
- Krypton, compressed
- [Kr]
- cripton
- krypton atom
- krypton hydride
- krypton(0)
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