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Thermal Decomposition Processes and Non-isothermal Kinetics of KDNBF

Zhang Jian-guoer

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Abstract

The thermal decomposition process of potassium 4,6-dinitro-7-hydroxy-7-hydrobenzofuroxanate (KDNBF) is studied by using DSC, TG-DTG and FT-IR techniques. The results show that the solid residue at 230 ℃ are RCOOK, KNCO, RNO_2 and KNO_3, and at 306 ℃ are KNC, RCOOK and KNO_3, respectively. The Arrhenius parameters of the decomposition reaction are calculated using Kissinger′s and Ozawa-Doyle′s method, indicating that the results obtained by the two methods agree well with each other and the Arrhenius equation of this reaction can be expressed by lnk = 45.2-192600/RT.

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What this paper is about

The thermal decomposition process of potassium 4,6-dinitro-7-hydroxy-7-hydrobenzofuroxanate (KDNBF) is studied by using DSC, TG-DTG and FT-IR techniques. The results show that the solid residue at 230 ℃ are RCOOK, KNCO, RNO_2 and KNO_3, and at 306 ℃ are KNC, RCOOK and KNO_3, respectively. The Arrhenius parameters of the decomposition reaction are calculated using Kissinger′s and Ozawa-Doyle′s method, indicating that the results obtained by the two methods agree well with each other and the Arrhenius equation of this reaction can be expressed by lnk = 45.2-192600/RT.

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Available abstract

The thermal decomposition process of potassium 4,6-dinitro-7-hydroxy-7-hydrobenzofuroxanate (KDNBF) is studied by using DSC, TG-DTG and FT-IR techniques. The results show that the solid residue at 230 ℃ are RCOOK, KNCO, RNO_2 and KNO_3, and at 306 ℃ are KNC, RCOOK and KNO_3, respectively. The Arrhenius parameters of the decomposition reaction are calculated using Kissinger′s and Ozawa-Doyle′s method, indicating that the results obtained by the two methods agree well with each other and the Arrhenius equation of this reaction can be expressed by lnk = 45.2-192600/RT.

Key concepts: Arrhenius equation, Thermal decomposition, Isothermal process, Chemistry, Decomposition, Kinetics, Chemical decomposition, Activation energy

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