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Analytical Chemistry and Computer Modeling
CHEMTANE 2
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Standard values were obtained from the literature. Tests were also conducted to fully characterize Chemtane 2 cutting fuel combustion properties. Temperature measurements were made by indirect thermocouple thermometry in a closed refractory lined chamber of known heat capacity. Effective heat content was measured versus the enthalpy of propane.
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Maximum Flame Temperatures:
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3315
0C ( + 45 0C)
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6000 0F ( + 80 0F)
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Effective Heat Content of Gas @ 60 oF ( 15.6 oC) and 1 atm:
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104.59 kj /l
57,783 kj /kg
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2810
BTU /cu ft
24,812 BTU /lb
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Volume of Gas Produced from Weight of Liquid:
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551.24 cm3 /gm
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8.83
ft3 /lb
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Density of Gas:
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( @ 0 0C (32 0F) )
( @ 15.6 0C (60 0F) )
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1.91 g/cm3
1.81 g/cm3
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Specific Gravity of Gas (compared to air):
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(
@ 0 0C (32 0F) )
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1.5
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Effective Heat Content for Liquid:
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26,559 kjoules /l
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106,000BTU/gal
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Heat of Vaporization @ 1 atm & boiling pt.
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418
kjoule/kg
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180 BTU
/lb
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Density of Liquid: ( @ 15.6 0C , 60 0F )
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0.505 g/ cm.3
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4.24 lb/gal
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Specific Gravity of Liquid (compared to water):
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0.505
@ 15.6 / 15.6 0C
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(60 0F)
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Stoichiometric Ration:
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3.58 kg Oxygen / kg Fuel (3.58 lb Oxygen / lb Fuel)
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Typical Oxygen/Fuel Ration for Cutting:
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20 ft3 Oxygen / 6 ft3 Fuel (per hr)
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Vapor Pressure:
(@23.75 0C, 70 0F)
(@37.78
0C,100 0F)
(@61.25
0C,130 0F)
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8.8
kg/sq cm
15.3 kg/sq cm
17.2 kg/sq cm
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125 psig
218 psig
218 psig
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Flash Point:
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-101 0C
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-150 0F
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Explosive Limits:
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LEL 2.3
%
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UEL 9.4 %
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Boiling Point:
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-420C
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-43.60F
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Freezing Point: (from CRC Handbook)
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-1850C
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-3020F
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Note: To convert joules to
Cal. Gm. Multiply joules by 0.239
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