Argon (Ar)
DESCRIPTION (Argon):
Argon is a monatomic chemically inert gas
that is colorless, odorless and tasteless. Normally supplied in compressed gas cylinders
in the non-liquid state. Typical uses include fill gas for incandescent light bulbs,
carrier gas for arc welding, plasma jet torches and Geiger counting tubes.
PHYSICAL CONSTANTS (Argon):
| Molecular Weight: |
39.948 |
| Specific Volume @ 70° F., 1
atm.: |
9.67 cu.ft/lb |
| Boiling Point @ 1.0 atm. : |
-302.58° F |
| Freezing Point @ 1.0 atm. : |
-308.6° F |
| Triple Point @ 0.68 atm: |
-310.81° F |
| Specific Gravity, Gas @
15° C., 1 atm. (Air = 1): |
1.38 |
| Density, Gas @ 20° C., 1 atm.: |
1.664 g/L |
| Density, Liquid @ b.p.: |
1.3982 g/L |
| Critical Temperature: |
-188.5° F |
| Critical Pressure: |
705.6 psia |
| Critical Density: |
0.536 g/ml |
| Latent Heat of Vaporization @
b.p. |
39.13 cal/g |
| Latent Heat of Fusion @ t.p. |
6.33 cal/g |
| Specific Heat, Gas @ 25° C.,
1 atm. Cp: |
0.1252 cal/g° C |
| Specific Heat, Gas @ 25° C.,
1 atm. Cv: |
0.075 cal/g° C |
| Specific Heat Ratio, Gas @
25° C., 1 atm., Cp/Cv: |
1.668 |
| Thermal Conductivity, Gas @
0° C, 1 atm. : |
3.92x10-4 cal/(sec) (cm2 )(° C/cm) |
| Viscosity, Gas @ 25° C., 1
atm. : |
226.38 centipoise |
| Dielectric Constant, Gas @
20° C., 1 atm. : |
1.0051659 |
| First Ionization Potential |
15.759 eV |
| Solubility in Water @ 0° C.,
1 atm. : |
5.24 cc/100g |
| Solubility in Water @ 0° C.,
1 atm. : |
2.85 cc/100g |
COMPATIBLE MATERIALS (Argon):
Argon is an inert gas and therefore requires no special materials for handling, storage or
piping.
CYLINDER CONNECTIONS (Argon):
Standard CGA V-1 Cylinder Connection upto 3000 psig: CGA 580
Standard CGA V-1 Cylinder Connection from 3001 to 5500 psig: CGA 680
Standard CGA V-1 Cylinder Connection from 5501 to 7500 psig: CGA 677
Standard CGA V-1 Cylinder Connection for ultra high integrity: CGA 718
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