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Dissolution thermodynamics of dihydroxylammonium 5,5′-bistetrazole-1,1′-diolate in water at T = (298.15, 303.15, 308.15 and 313.15 K)

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Abstract

The enthalpies of dissolution for dihydroxylammonium 5, 5′-bistetrazole-1,1′-diolate (TKX-50) in water were measured using a C-80 Calvet microcalorimeter at four different temperatures under atmospheric pressure. Differential enthalpies (Δdif H) and molar enthalpies (Δdiss H) of dissolution were calculated. The corresponding kinetic equations that describe the dissolution rate at the four experimental temperatures are dα/dt = 10−3.06(1 − α)0.59 (T = 298.15 K), dα/dt = 10−2.98(1 − α)0.37 (T = 303.15 K), dα/dt = 10−2.90(1 − α)0.37 (T = 308.15 K), dα/dt = 10−2.85(1 − α)0.43 (T = 313.15 K). In addition, the determined values of the activation energy E and pre-exponential factor A for the dissolution process are 25.08 kJ mol−1 and 21.98 s−1, respectively.

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Authors and Affiliations

  1. School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, China

    Hu Niu, Shusen Chen, Shaohua Jin, Lijie Li & Qinghai Shu

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  1. Hu Niu
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  2. Shusen Chen
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  3. Shaohua Jin
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  4. Lijie Li
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  5. Qinghai Shu
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Correspondence to Qinghai Shu.

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Niu, H., Chen, S., Jin, S. et al. Dissolution thermodynamics of dihydroxylammonium 5,5′-bistetrazole-1,1′-diolate in water at T = (298.15, 303.15, 308.15 and 313.15 K). J Therm Anal Calorim 128, 1875–1880 (2017). https://doi.org/10.1007/s10973-016-6058-6

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