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Isobutene 2.0, liquefied under pressure

liquefied under pressure
Purity 99 vol.%
Descriptions Isobutene 2.0

Impurities

Impurities

Other hydrocarbons 10000 vol. ppm
Delivery formats In low pressure cylinders
Cylinders/container volumes 12 l 27 l 12 l 27 l
Content Content (kg) 6 13 6 13
Vapour Pressure Vapour Pressure (bar) 2,3 2,3 2,3 2,3

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.

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 2,415 3,858
1 kg 0,414 1,000 1,598
1 l liquid at T boiling point; 1 bar 0,259 0,626 1,000

Other delivery formats

on request ; Alumini® 12, 200 Isobutene 2.5

Physical Data

Molar mass 56,10 g mol-1
Liquid State
Boiling Point 266,03 (-7,1) K (°C)
Heat of Evaporation 400,68 kJ kg-1
Liquid Density 626,2 kg m-3
Gaseous state
Density (at 273.15 K and 1.013 bar) 2,6 kg m-3
Density Ratio to Air (at 288.15 K and 1.013 bar) 1,95
Specific heat (at 298.15 K and 1.013 bar) 1,59 kJ kg-1 K-1
Thermal Conductivity (at 288.15 K and 1.013 bar) 0,0153 J s-1 m-1 K-1
Critical Point
Temperature 417,85 (144,7) K (°C)
Pressure 40,01 bar
Density 234 kg m-3
Triple Point
Temperature 132,8 (-140,4) K (°C)
Vapour Pressure -- bar
Heat of Fusion 105,6 kJ kg-1
Additional operating figures
Ignition Point 738 (464,9) K (°C)
Ignition Range in Air 1,6-10 vol.%
Calorific Value to DIN 51850 125088 kJ kg-3

at the melting point

at the melting point

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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