Analysis of the Solubility of TNT and RDX in TNT/RDX/SC-CO2

Wen Su Ji; Yu Kui Ding; Yu Qiu Xu

doi:10.4028/www.scientific.net/AMR.940.37

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 940Analysis of the Solubility of TNT and RDX in...

Analysis of the Solubility of TNT and RDX in TNT/RDX/SC-CO₂

Abstract:

The solubility of TNT and RDX was measured in supercritical carbon dioxide fluid at 303.0, 308.0, 323.0, 338.0 K, and over the pressure range from 10.0 MPa to 50.0 MPa. This study examined the influences of extraction temperature, extraction pressure and support effect (SE) between molecules of TNT and RDX on their solubility in the TNT/RDX/SC-CO₂ system. The results show that solubility of TNT and RDX in TNT/RDX/SC-CO₂ ternary system is much higher than that in binary system. The values of SE of RDX and TNT increase first and decrease then with the pressure changing. The pressure turning point occurred over the pressure range from 25 MPa to 28 MPa for TNT and from 13 MPa to 20 MPa for RDX.