What is Argon? And some information about Argon / Nasim Sobh Farda

Argon

What is Argon?

  • Argon is one of the chemical elements denoted by Ar and It has an atomic mass of 18.
  • The third-largest gas in the atmosphere is argon (about %0.934 of air is argon).
  • Almost all of the argon in the air is the 40-argon isotope, while in the major argon space it is the 36-argon Isotope.

Other Information About Argon:

  • Argon belongs to the family of rare and inert gases of the periodic table.
  • Argon is a colorless, odorless, tasteless, and non-toxic gas that is completely inert and has no known chemical composition at room temperature, and it’s slightly soluble in water.

Physical properties

Molecular Weight 39.95
steam pressure 100 K. Pa @ -186.15 0C
Gas density 1.650 Kg/m3 @ 21.1 0C and 1 atm
The latent heat of evaporation at the boiling point 162.3 KJ/Kg
Special heat capacity CP=0.523 KJ/Kg.0C

CV=0.314 KJ/Kg.0C

CP/CV=1.67
Critical temperature -122.3 0C
Critical pressure 4906 KPa(a)
Solubility in water 0.056 vol.(gas)/Vol.(Water) at 00C and 1 atm
Explosion / ignition range in air Non Flammable

Compatibility with materials

Material Compatibility of Argon

METALS PLASTICS ELASTOMERS
ALUMINUM CARBON STEEL CAST/DUCTILE IRON 304 STAINLESS STEEL 316 STAINLESS STEEL CUPPER BRASS POLY ETHYLENE POLY PROPYLENE NYLON PTFE – TEFLON PVDF PVC BUNA-NATURAL RUBBER NBR EPR-EPDM VITON
GAS A A A A A A A A A A A A A A A A A
Liquid D D D B C D C D D D C D D D D D D

A: EXCELLENT
B: GOOD
C: FAIR TO POOR
D: NOT RECOMMENDED

Safty

Classification of dangerous Products:

Dangerous Products Transport Information:

IATA IMDG DOT
UN 1006 UN 1006 UN 1006 UN NUMBER
ARGON , COMPRESSED ARGON , COMPRESSED ARGON , COMPRESSED UN SHIPPING NAME
2.2 2.2 2.2 TRANSPORT HAZARD CLASS
NO NO NO ENVIRONMENTAL HAZARD

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