LI Gao-liang, CHEN Zhi-xu, LIU Jin-ping, ZHOU Xian-ming, LAN Tian, TANG Hong-bin, CHANG Shang-wen, HE Hui. Measurement of Reaction Heat Between Nitrous Acid and Hydrazine/Hydroxylamine[J]. Journal of Nuclear and Radiochemistry, 2019, 41(6): 522-529. DOI: 10.7538/hhx.2019.YX.2019028
    Citation: LI Gao-liang, CHEN Zhi-xu, LIU Jin-ping, ZHOU Xian-ming, LAN Tian, TANG Hong-bin, CHANG Shang-wen, HE Hui. Measurement of Reaction Heat Between Nitrous Acid and Hydrazine/Hydroxylamine[J]. Journal of Nuclear and Radiochemistry, 2019, 41(6): 522-529. DOI: 10.7538/hhx.2019.YX.2019028

    Measurement of Reaction Heat Between Nitrous Acid and Hydrazine/Hydroxylamine

    • The reaction heats released by the reaction between nitrous acid and hydrazine and hydroxylamine were respectively investigated using micro calorimeter C80. The results show that the reaction heat per mole of nitrous acid with hydrazine depends on their proportions. While the concentration of nitrous acid is two times higher than that of hydrazine, the reaction heat per mole of hydrazine(ΔE1) is 284.4 kJ/mol. The reaction heat per mole of nitrous acid(ΔE2) is 166.7 kJ/mol when the concentration ratio of nitrous acid to hydrazine is less than 1. Additionally, when the concentration ratio is between 1 and 2, the reaction heat per mole of hydrazine is between ΔE1 and ΔE2. The reaction heat per mole of nitrous acid depends on nitrous acid/hydroxylamine proportions. When the concentration of nitrous acid is more than that of hydroxylamine, the reaction heat per mole of hydroxylamine ΔE4 is 200.0 kJ/mol; whereas the concentration of nitrous acid is less than that of hydroxylamine, the reaction heat per mole of nitrous acid ΔE5 is 194.9 kJ/mol. The temperature increment of feed adjustment for 1 BP in the spent fuel reprocessing process is also discussed and tested.
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