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Secudur® He, gaseous, compressed

gaseous, compressed
Purity 99,999 vol.%
Descriptions Secudur® He

Impurities

Impurities

Oxygen 2 vol. ppm
Moisture 3 vol. ppm
Methane 1 vol. ppm
Carbon monoxide 5 vol. ppm
Delivery formats In steel cylinders and 12-cylinder bundles
Cylinders/container volumes 50 l 12 x 50 l 50 l 12 x 50 l
Content Content (m3) 9,1 109,2 9,1 109,2
Filling pressure Filling pressure (bar) 200 200 200 200

Unless otherwise stated, these refer to filling pressure at 288,15K (15°C) and to content at 288,15K (15°C) and 1,013 bar.

Unless otherwise stated, these refer to filling pressure at 288,15K (15°C) and to content at 288,15K (15°C) and 1,013 bar.

Properties asphyxiant
Valve connection DIN 477 No. 6 | (W 21.80 x 1/14)
Shoulder colour olive brown (RAL 8008)

Conversions

m3 kg l liquefied
1 at 288.15 K (15°C); 1 bar 1,000 0,167 1,336
1 kg 5,988 1,000 8,001
1 l liquid at T boiling point; 1 bar 0,748 0,125 1,000

Other delivery formats

on request

Secudur® He fulfils the product specifications of the European Pharmacopoeia (PhEur) and the U.S. Pharmacopeia (USP), and is manufactured using the PhEur. Manufacturing analytics with regard to impurities.
Secudur® He fulfils the product specifications of the European Pharmacopoeia (PhEur) and the U.S. Pharmacopeia (USP), and is manufactured using the PhEur. Manufacturing analytics with regard to impurities.

Physical Data

Molar mass 4,00 g mol-1
Liquid State
Boiling Point 4,22 (-268,9) K (°C)
Heat of Evaporation 20,42 kJ kg-1
Liquid Density 125 kg m-3
Gaseous state
Density (at 273.15 K and 1.013 bar) 0,18 kg m-3
Density Ratio to Air (at 288.15 K and 1.013 bar) 0,14
Specific heat (at 298.15 K and 1.013 bar) 5,20 kJ kg-1 K-1
Thermal Conductivity (at 288.15 K and 1.013 bar) 0,1482 J s-1 m-1 K-1
Critical Point
Temperature 5,2 (-268,0) K (°C)
Pressure 2,28 bar
Density 69,6 kg m-3
Triple Point
Temperature 2,177 (-271,0) K (°C)
Vapour Pressure 0,051 bar
Heat of Fusion 3,49 kJ kg-1
Additional operating figures
Ignition Point -- K (°C)
Ignition Range in Air -- vol.%
Calorific Value to DIN 51850 -- kJ kg-3

Typical applications

Suitable pressure regulators:

WEGA range: see brochure: "Good on Top: Pressure Regulators for Specialty Gases". WEGA range: see brochure: "Good on Top: Pressure Regulators for Specialty Gases".
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