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- Author or Editor: Qing Pei x
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Abstract
The enthalpies of dissolution in ethyl acetate and acetone of hexanitrohexaazaisowurtzitane (CL-20) were measured by means of a RD496-2000 Calvet microcalorimeter at 298.15 K, respectively. Empirical formulae for the calculation of the enthalpy of dissolution (Δdiss
H), relative partial molar enthalpy (Δdiss
H
partial), relative apparent molar enthalpy (Δdiss
H
apparent), and the enthalpy of dilution (Δdil
H
1,2) of each process were obtained from the experimental data of the enthalpy of dissolution of CL-20. The corresponding kinetic equations describing the two dissolution processes were 
for dissolution process of CL-20 in ethyl acetate, and 
for dissolution process of CL-20 in acetone.
Abstract
The enthalpies of dissolution for di(N,N-di(2,4,6,-trinitrophenyl)amino)-ethylenediamine (DTAED) in dimethyl sulfoxide (DMSO) and N-methyl pyrrolidone (NMP) were measured using a RD496-2000 Calvet microcalorimeter at 298.15 K. Empirical formulae for the calculation of the enthalpies of dissolution (Δdiss
H) were obtained from the experimental data of the dissolution processes of DTAED in DMSO and NMP. The linear relationships between the rate (k) and the amount of substance (a) were found. The corresponding kinetic equations describing the two dissolution processes were 
for the dissolution of DTAED in DMSO, and 
for the dissolution of DTAED in NMP, respectively.
