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Protadur® E 938 (Argon), cryogenically liquefied

cryogenically liquefied
Purity 99 vol.%
Descriptions Protadur® E 938 (Argon)

Impurities

Moisture 500 vol. ppm
Hydrocarbons 100 vol. ppm
Delivery formats For static and mobile tank installations

Properties asphyxiant
Valve connection plant specific
Shoulder colour none, proper transport marking in accordance with ADR

Conversions

m3 kg l liquefied
1 at 288.15 K (15°C); 1 bar 1,000 1,668 1,197
1 kg 0,599 1,000 0,718
1 l liquid at T boiling point; 1 bar 0,835 1,393 1,000

Other delivery formats

on request ; Alumini® 12, 200 Argon 5.0 ; in static and mobile tanks: Liquid argon 4.6, 4.8, 5.0, 6.0, Protadur® E 938 ; in steel cylinders and bundles: Argon 4.6, 4.8 Spektro, 5.0, 5.5, 6.0, Protadur® E 938,  Secudur® Ar ; in 300 bar technology: Argon 4.6, 4.8 Spektro and 5.0

Manufacture complies with the requirements of EC Regulation 178/2002/EC and corresponds to purity requirements for food additives according to regulation (EU) 231/2012.

Physical Data

Molar mass 39,95 g mol-1
Liquid State
Boiling Point 87,29 (-185,9) K (°C)
Heat of Evaporation 160,81 kJ kg-1
Liquid Density 1392,8 kg m-3
Gaseous state
Density (at 273.15 K and 1.013 bar) 1,78 kg m-3
Density Ratio to Air (at 288.15 K and 1.013 bar) 1,38
Specific heat (at 298.15 K and 1.013 bar) 0,52 kJ kg-1 K-1
Thermal Conductivity (at 288.15 K and 1.013 bar) 0,0160 J s-1 m-1 K-1
Critical Point
Temperature 150,86 (-122,3) K (°C)
Pressure 48,98 bar
Density 537,7 kg m-3
Triple Point
Temperature 83,8 (-189,4) K (°C)
Vapour Pressure 0,687 bar
Heat of Fusion 29,3 kJ kg-1
Additional operating figures
Ignition Point -- K (°C)
Ignition Range in Air -- vol.%
Calorific Value to DIN 51850 -- kJ kg-3
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