(Liberty Industrial Gases supplies a full range of industrial gases in a variety of cylinder sizes for all your gas needs. the capability of providing pure gases along with customized mixing of component gases to meet all your welding needs.)
Properties of Argon
Argon (Ar) is a noble gas that comprises 0.93 percent of the earth’s atmosphere. (Noble gases are a group of rare gases that include argon, helium, krypton, neon, xenon and sometimes radon. They exhibit great stability and extremely low reaction rates. Also called inert gases.)
Colorless, odorless, tasteless and nontoxic, argon forms no known chemical compounds. A specific gravity of 1.38 makes argon 25 percent heavier than air. At atmospheric pressure, it becomes a liquid at -302°F (-186°C). Noncorrosive and non-flammable, argon also exhibits low thermal conductivity and slight solubility in water.
Liquid argon is classified as Type II by the compressed Gas Association (CGA). CGA G-11.1, Type II, Grade C is considered commercial liquid argon standards.
Liquid Argon
(Units in ppm (v/v) unless show otherwise)
| Limiting Characteristics | CGA G-11.1
Type II, Grade C |
Typical |
| Argon Minimum, % | 99.997 | 99.998 |
| Water | 10.5 | 3.5 |
| Dew Point, °F | -76 | -90 |
| Oxygen | 5 | 2 |
| Nitrogen | 20 | 10 |
| Hydrogen | 1 | 1 |
| Combined total hydrocarbons (as methane) and cabon dioxide | 3 | 3 |
Argon Conversion Data
| Argon | Weight | Gas | Liquid | |||
| Pounds | Kilograms | Cubic Feet | Cubic Meters | Gallons | Liters | |
| LB | KG | SCF | Nm3 | Gal | L | |
| 1 Pound | 1 | 0.4536 | 12.078 | 0.3173 | 0.105 | 0.3975 |
| 1 Kilogram | 2.205 | 1 | 26.632 | 0.6996 | 0.2315 | 0.8762 |
| 1 Ton | 2000 | 907.2 | 19342 | 508.6 | 172 | 651 |
| 1 SCF Gas | 0.1034 | 0.0469 | 1 | 0.02628 | 0.008893 | 0.03366 |
| 1 Nm3 Gas | 3.933 | 1.784 | 38.04 | 1 | 0.3382 | 1.2802 |
| 1 Gal Liquid | 11.63 | 5.276 | 112.5 | 2.957 | 1 | 3.785 |
| 1 L Liquid | 3.072 | 1.3936 | 29.71 | 0.7812 | 0.2642 | 1 |
SCF (standard cubic foot) and SM3 (standard cubic meter) gas measured at 1 atmosphere and 70ºF.
Liquid measured at 0ºF and saturated pressure.
Nm3 (normal cubic meter) gas measured at 1 atmosphere and 0ºC.
All values round to the nearest 4/5 significant numbers.