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n-Butane 3.5, liquefied under pressure

liquefied under pressure
Purity 99,95 vol.%
Descriptions n-Butane 3.5

Impurities

Other hydrocarbons 500 vol. ppm
Delivery formats In low pressure cylinders
Cylinders/container volumes 12 l 27 l
Content (kg) 5 11
Vapour Pressure (bar) 1,8 1,8

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

Properties highly flammable
Valve connection DIN 477 No. 1 | (W 21.80 x 1/14 LH)
Shoulder colour flame red (RAL 3000)

Conversions

m3 kg l liquefied
1 at 288.15 K (15°C); 1 bar 1,000 2,522 4,196
1 kg 0,397 1,000 1,664
1 l liquid at T boiling point; 1 bar 0,238 0,601 1,000

Other delivery formats

on request ; Alumini® 12, 200 n-Butane 2.5 ; in low pressure cylinders: n-Butane 2.5 and 3.5

Physical Data

Molar mass 58,12 g mol-1
Liquid State
Boiling Point 272,65 (-0,5) K (°C)
Heat of Evaporation 385,6 kJ kg-1
Liquid Density 601,4 kg m-3
Gaseous state
Density (at 273.15 K and 1.013 bar) 2,73 kg m-3
Density Ratio to Air (at 288.15 K and 1.013 bar) 2,11
Specific heat (at 298.15 K and 1.013 bar) 1,66 kJ kg-1 K-1
Thermal Conductivity (at 288.15 K and 1.013 bar) 0,0149 J s-1 m-1 K-1
Critical Point
Temperature 425,18 (152,0) K (°C)
Pressure 37,96 bar
Density 228 kg m-3
Triple Point
Temperature 134,9 (-138,3) K (°C)
Vapour Pressure 0,4 x 10^-6 bar
Heat of Fusion 80,2 kJ kg-1
Additional operating figures
Ignition Point 638 (364,9) K (°C)
Ignition Range in Air 1,4-9,4 vol.%
Calorific Value to DIN 51850 134061 kJ kg-3

Typical applications

Suitable pressure regulators:

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