TY - JOUR
T1 - Hydrolysis of hexanitrohexaazaisowurtzitane (CL-20)
AU - Pavlov, Julius
AU - Christodoulatos, Christos
AU - Sidhoum, Mohammed
AU - Nicolich, Steven
AU - Balas, Wendy
AU - Koutsospyros, Agamemnon
PY - 2007/1
Y1 - 2007/1
N2 - The hydrolysis of the α, β, and ε polymorphs of 2,4,6,8,10,12-hexanitro-2,4,6,8,10,12-hexaazaisowurtzitane(CL-20) was investigated in dilute buffered aqueous solutions over a pH range of 4-10 and at 35, 43, 50, 58 and 65°C, with starting concentrations of CL-20 at one half the solubility limit for the respective temperature. In all cases, an overall first-order kinetic behavior was observed. The rate constants, half-lives, activation energies, and Arrhenius pre-exponential factors were determined. The latter was found to vary linearly with pH. Based on these findings, general formulas for the hydrolysis kinetics of the three polymorphs were developed.
AB - The hydrolysis of the α, β, and ε polymorphs of 2,4,6,8,10,12-hexanitro-2,4,6,8,10,12-hexaazaisowurtzitane(CL-20) was investigated in dilute buffered aqueous solutions over a pH range of 4-10 and at 35, 43, 50, 58 and 65°C, with starting concentrations of CL-20 at one half the solubility limit for the respective temperature. In all cases, an overall first-order kinetic behavior was observed. The rate constants, half-lives, activation energies, and Arrhenius pre-exponential factors were determined. The latter was found to vary linearly with pH. Based on these findings, general formulas for the hydrolysis kinetics of the three polymorphs were developed.
KW - Arrhenius equation
KW - CL-20
KW - HNIW
KW - Hydrolysis
KW - Kinetics
KW - Polymorphs
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U2 - 10.1080/07370650601107245
DO - 10.1080/07370650601107245
M3 - Article
AN - SCOPUS:33847046726
SN - 0737-0652
VL - 25
SP - 1
EP - 18
JO - Journal of Energetic Materials
JF - Journal of Energetic Materials
IS - 1
ER -