18 Ar 39.95

Argon

noble gas · Group 18 · Period 3

2 section(s) thin

Atomic properties

Atomic number
18
Z
Atomic weight
39.95[1]
g/mol
Density
0.001784 g/cm³
at STP
Melting point
-189.34 °C
at 1 atm
Boiling point
-185.85 °C
at 1 atm
Crystal structure
FCC
Electron config.
[Ne] 3s² 3p⁶
Oxidation states
0
most common

Market data

No tradeable futures market for Ar on Yahoo / Stooq. Live market data is not available; pricing in this page is based on contract reference figures from the source documents.

Commercial forms & specifications

Product FormChemical FormulaMolecular WeightTypical PurityPrice Range (USD)Main Applications
Industrial Grade GasAr39.948 g/mol99.995%$0.50-1.00/m³Welding, steel production
High Purity GasAr39.948 g/mol99.999%$2.00-4.00/m³Electronics, analytical labs
Ultra High Purity GasAr39.948 g/mol99.9999%$8.00-15.00/m³Semiconductor manufacturing
Liquid Argon (LAR)Ar39.948 g/mol99.995-99.999%$0.30-0.80/literBulk storage, cryogenics
Cylinder Gas (K-size)Ar39.948 g/mol99.995%$150-300/cylinderWorkshop welding
Argon-CO2 Mix (C25)75% Ar + 25% CO₂VariableIndustrial$0.80-1.50/m³MIG welding
Argon-Helium MixAr + HeVariable99.995%+$5.00-20.00/m³TIG welding aluminum
Argon-Hydrogen Mix95% Ar + 5% H₂Variable99.995%+$2.00-4.00/m³Plasma cutting
Research GradeAr39.948 g/mol99.9995%$5.00-10.00/m³Scientific research
Isotopically Pure ⁴⁰Ar⁴⁰Ar39.962 g/mol99.99% isotopic$500-2000/literDark matter detection

Suppliers by country

🇺🇸 United States

CompanyProduct FormsSpecialties
Air ProductsLiquid, gas cylinders, bulk, on-site generationUltra-high purity argon, semiconductor grade, specialty mixtures
Praxair (Linde Americas)All forms, pipeline supply, ISO containersLarge-scale ASUs, welding mixtures, rare gas recovery
Airgas (Air Liquide)Cylinders, liquid dewars, microbulkWelding gases, analytical standards

🇫🇷 France

CompanyProduct FormsSpecialties
Air LiquideAll forms, on-site ASUs, pipeline networksElectronics grade, ALPHATM purity grades, global leader

🇩🇪 Germany

CompanyProduct FormsSpecialties
Linde plcAll forms, on-site plants, ISO modulesWorld's largest industrial gas company, advanced ASU technology
Messer GroupCylinders, bulk liquid, on-siteEuropean focus, specialty mixtures

🇯🇵 Japan

CompanyProduct FormsSpecialties
Nippon Sanso (Taiyo Nippon Sanso)High purity gas, liquid, specialty mixturesElectronics grade, Asia-Pacific leader
Air Water Inc.Industrial and high purity gradesJapanese market focus, medical gases

🇨🇳 China

CompanyProduct FormsSpecialties
Yingde GasesBulk liquid, cylinders, on-site plantsLargest Chinese producer, rapid expansion
Hangzhou Oxygen Plant GroupASU equipment and gas productionIntegrated ASU manufacturer and operator

🇮🇳 India

CompanyProduct FormsSpecialties
INOX Air ProductsLiquid, gas, on-site generationJoint venture, steel industry focus
Ellenbarrie Industrial GasesCylinders, bulk liquidEastern India market leader

Market demand by product form

ApplicationGlobal Market SizeUSA MarketChina MarketGrowth Rate (CAGR)
Metal Fabrication/Welding$3.2 billion20% share35% share4.5%
Steel Production$1.8 billion15% share45% share5.2%
Electronics/Semiconductors$2.4 billion30% share25% share7.8%
Chemicals & Refining$0.9 billion25% share20% share3.5%
Food & Beverage$0.6 billion35% share15% share5.5%
Healthcare/Medical$0.4 billion40% share10% share6.2%
3D Metal Printing$0.3 billion35% share20% share15.5%
Scientific Research$0.2 billion30% share15% share4.0%

Moles per kilogram

Product FormFormulaMW (g/mol)Moles/kg
Argon (all forms)Ar39.94825.03
Argon-36 (isotope)³⁶Ar35.96827.80
Argon-38 (isotope)³⁸Ar37.96326.34
Argon-40 (isotope)⁴⁰Ar39.96225.02

References

No citations on this page yet. References will appear here once enrichment runs.

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Coverage notes

The following sections are thin or absent in the source document for this element. They will be filled by enrichment passes (NIST atomic, OSHA/NIOSH safety, USGS / IAI environmental).