Thermochemistry of the Binary System Nitrocellulose+2,6-dinitrotoluene |
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Authors: | Książczak A Wolszakiewicz T |
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Institution: | (1) Department of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland;(2) Institute of Organic Industrial Chemistry, Annopol 6, 03-236 Warsaw, Poland |
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Abstract: | The mixing and melting enthalpy of the binary system nitrocellulose+2,6-dinitrotoluene was determined using the DSC method.
The mixing enthalpy of the components was calculated. At the melting temperature the maximum value of the mixing enthalpy
for the mole fractionx
w26DNT=0.607 is equal H
M
max= −3.41 kJ mol−1. Measurements of the melting process (second measurement) were conducted after a storage period of several days at room temperature.
Analysis of the melting peaks shows that the melting process of 26DNT takes place in pores of the micro-fiber and bulk outside
the fibers. In the case of a mass fraction of x
w26DNT>0.9 the melting process takes place in the bulk, which suggests that in the case of such concentrations separation of the
micro-fibers occurs.
This revised version was published online in August 2006 with corrections to the Cover Date. |
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Keywords: | 2 6-dinitrotoluene DSC mixing enthalpy nitrocellulose |
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