Gases   
 
     
Argon, Ar »  
ARGON  
Name:
Symbol:
Atomic number:
Molecular weight:
Group name:
CAS Registry ID:  
UN Number (gas):
UN Number (liquid):
Argon
Ar
18
39.948 g/mol
Rare gas
7440-37-1
UN1006
UN1951

Argon (Greek argos meaning "lazy") terrestrially the most abundant and industrially the most frequently used of the noble gases. Argon is used in the fanciest, most energy-efficient double-pane insulated windowsis, in gas-filled electric light bulbs, radio tubes, and Geiger counters. It also is widely utilized as an inert atmosphere for arc-welding metals, such as aluminum and stainless steel; for the production and fabrication of metals, such as titanium, zirconium, and uranium; and for growing crystals of semiconductors, such as silicon and germanium.

Qualitative performance

ARGON Gas Purity 99,999 Ar % ppm
Oxygen O2 ppm 1,0
Moisture H20 ppm 1,0

ARGON Liquid Purity 99,999

Ar

%

ppm
Hydrogen H2 ppm 0,5
Nitrogen N2 ppm 5,0
Oxygen O2 ppm 2,0
Moisture H20 ppm 2,0


  m3
gas
15°C 1bar
ltr.
liquid
TS 1,013 bar
kg
m3 1 1,197 0,169
ltr. 0,8352 1 1,394
kg 0,5992 0,7174 1


Physical constants

Chemical Formula Ar
Molecular weight 39.948
Denseness of gas at boiling point 5,85 Kg/m3
Denseness of gas at + 15°C 1,67 kg/m3
Temperature of boiling -268,8°C (4,2°K)
Denseness of a liquid 1392.8 kg/m3
Bottlenecks:  
Temperature -122,3°C
Pressure 48,98 bar
Denseness 537,7 Kg/m3

Information about cylinders

Type of cylinder Bulk, ltr. Type of a valves Operating pressures, bar Amount, ltr.
B50 50 DIN 477/6 140 10.000


Transport data

Chemical Symbol Ar
CAS Registry ID 7440-37-1
DOT Classification Non-inflammable gas
DOT Label Non-inflammable gas
Hazard class 2.2
UN Number UN 1006
Toxility (TLV) Non-toxic gas (asthma)
Range of Flammability (in an air) Non-inflammable gas
Odor Without an odor
Xenon, Xe »
Krypton, Kr »
Neon, Ne »
Helium, He »
Octafluorocyclobutane, C4F8 »
Tetrafluoromethane, CF4 »
Sulfur Hexafluoride, SF6 »
Silicon tetrafluoride, SiF4 »
Octafluoropropane, C3F8 »
Propen(Propylen), C3H6 »
Propan, C3H8 »
Butan »
Lasergases »
 
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