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Features of propane gas
DIN 51622 quality



Density in liquid Phase
Density of Gas
at 15°C in kg/l
at 0°C 1 bar in kg/Nm³
0,51
2,011
Relation of density to air (air=1)
1,55
Specific liquid volume of
1 kg propane gas
at 0°C in l
at 15°C in l
1,88
1,96
Volume of 1 kg Gas
(at 1 bar)
at 0°C in l
at 15°C in l
508
535
Steam pressure in bar excess pressure at 20°C
at 0°C
at -10°C
7,353
3,703
2,424
Boiling-point in °C at 1,013 bar -42
Heat of vaporisation at °C kW/kg 0,1O5
Lower heating value Hu
0°C 1 bar
kWh/kg
kWh/m³
12,87
25,99
Wobbe index Wu related to Hu (kWh)
20,79
Flame temperature in°C with air
with oxygen
1925
2850
Ignition temperature with air °C 510
Ignition limits (explosion limits) with air in Vol. % Gas 2,1-9,5
Combustion speed with air cm/sec 42
Air required for burning in m³ per m³
per kg
23,9
12,1
Oxygen required in m³ per m³
per kg
5,O
2,6
Volume of all products of combustion, moist in m³ per m³ Gas 26
Thawing point of the combustion products °C 55
CO2 max. (Vol.%)
13,8

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