Basic information
- CAS
7439-90-9- Standard SMILES
[Kr]- InChIKey
DNNSSWSSYDEUBZ-UHFFFAOYSA-N- Molecular formula
- Kr
- Average molar mass
- 83.8 g/mol
- Monoisotopic mass
- 83.91149773
Overview
Krypton, compressed, is a colorless, odorless gas. It is shipped as a liquid under its own vapor pressure. Contact with the liquid may cause frostbite to unprotected skin. It can asphyxiate by displacement of air. Exposure of the container to prolonged heat or fire may cause it to rupture violently and rocket.
Names & identifiers
- Preferred name
- Krypton
- IUPAC
- krypton
- English name
- Krypton
- Molecular formula
- Kr
- Molecular weight
- 0
Names & synonyms
KRYPTON7439-90-9Krypton, compressed5I8I620HVXKRDTXSID5064675RefChem:389090DTXCID3047637231-098-5criptonkrypton atomKrypton84
Show more names
UNII-5I8I620HVXkrypton hydrideKrypton elementAtomic KryptonElement KryptonElement:KryptonElement-KrElement:Kr
Database identifiers
- CAS
7439-90-9- PubChem CID
- 5416
- DTXSID
DTXSID5064675- ChEMBL
CHEMBL1233877- ChEBI
CHEBI:49696- UNII
- 5I8I620HVX
- EC Number
- 231-098-5
Properties
Computed structural properties
- Topological polar surface area
- 0 Ų
- Hydrogen bond donors
- 0
- Hydrogen bond acceptors
- 0
- Rotatable bonds
- 0
- Heavy atoms
- 1
- Formal charge
- 0
- Complexity
- 0
Experimental & physicochemical properties
Chemical ClassesOther Classes -> Elements, Nonmetallic
SpringerMaterials Properties
Auger effect
transition frequency
LogP1.2 (estimated)
Density2.89 @25 °C
SolubilitySolubility in water: none
Boiling Point
-153 °C
-152.9 °C @760 [mm Hg]
Melting Point
-157 °C
-157.1 °C
Vapor DensityRelative vapor density (air = 1): 2.9
Physical Description
Krypton, compressed, is a colorless, odorless gas. It is shipped as a liquid under its own vapor pressure. Contact with the liquid may cause frostbite to unprotected skin. It can asphyxiate by displacement of air. Exposure of the container to prolonged heat or fire may cause it to rupture violently and rocket.
Krypton, refrigerated liquid, is a colorless, odorless gas. It is shipped as a liquid under its own vapor pressure. Contact with the liquid may cause frostbite to unprotected skin. It can asphyxiate by displacement of air. Exposure of the container to prolonged heat or fire may cause it to rupture violently and rocket.
Safety & regulation
Safety information is for reference only and does not replace the supplier’s Safety Data Sheet (SDS), applicable regulations, or professional assessment.
GHS classification
GHS Classification
Warning
H280 (50.2%): Contains gas under pressure; may explode if heated [Warning Gases under pressure]
P282, P336+P317, P403, and P410+P403 (click each P-code to see the statement)
Aggregated GHS information provided per 532 reports by companies from 5 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Hazard information
Regulatory InformationChemical: Krypton
Other Safety InformationIMAP assessments - Krypton: Human health tier I assessment
DOT Label
Non-Flammable Gas
Non-Flammable Gas
Fire Hazards
Excerpt from ERG Guide 120 [Gases - Inert (Including Refrigerated Liquids)]:
Excerpt from ERG Guide 120 [Gases - Inert (Including Refrigerated Liquids)]:
· Non-flammable gases.
· Non-flammable gases.
Not combustible. Heating will cause rise in pressure with risk of bursting.
Health Hazards
Excerpt from ERG Guide 120 [Gases - Inert (Including Refrigerated Liquids)]:
Excerpt from ERG Guide 120 [Gases - Inert (Including Refrigerated Liquids)]:
· Vapors may cause dizziness or asphyxiation without warning, especially when in closed or confined areas.
· Vapors may cause dizziness or asphyxiation without warning, especially when in closed or confined areas.
Hazards SummaryContact with liquefied gas may cause frostbite. [CAMEO] Can displace oxygen in a confined space and cause simple asphyxia; [ICSC]
Chemistry & industry
Uses & manufacturing
UsesA noble gas that is found in the atmosphere. It has the atomic symbol Kr, atomic number 36, atomic weight 83.80, and has been used in electric bulbs. [ChemIDplus]
General Manufacturing InformationKrypton: ACTIVE
Suppliers23 total
安徽旺山旺水特种气体有限公司15906197626 · [email protected]
江西核研院新材料有限公司18901398682 18901398682 · [email protected]
湖南嘉航医药科技有限公司85521272 18229978283 · [email protected]
湖南省华中特种气体有限公司0734-8755555 15674722888 · [email protected]
尚澜气体（上海）有限公司4001882517 13194677939 · [email protected]
上海嘉斯保气体有限公司13218776790 13218776790 · [email protected]
济南市万理气体有限公司13245484555 · [email protected]
时美拓特种气体（上海）有限公司18557025385 15757158480 · [email protected]
Sigma-Aldrich西格玛奥德里奇(上海)贸易有限公司021-61415566 800-8193336 · [email protected]
HANGZHOU LEAP CHEM CO., LTD.+86-571-87711850 +86-15355479329 · [email protected]
上海辰楚化学有限公司
Related reactions
0 records
No reaction records under the current filter.
Compound notes
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