Table 4 Temperature effect on ion-isotopic exchange reactions
Temperature (°C) | Reaction (1) | Reaction (2) | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Duolite ARA-9366B | Purolite NRW-5010 | Duolite ARA-9366B | Purolite NRW-5010 | |||||||||
Specific reaction rate of rapid process (min−1) | Amount of iodide ion exchanged (mmol) | Initial rate of iodide ion exchange (mmol/min) | Specific reaction rate of rapid process (min−1) | Amount of iodide ion exchanged (mmol) | Initial rate of iodide ion exchange (mmol/min) | Specific reaction rate of rapid process (min−1) | Amount of bromide ion exchanged (mmol) | Initial rate of bromide ion exchange (mmol/min) | Specific reaction rate of rapid process (min−1) | Amount of bromide ion exchanged (mmol) | Initial rate of bromide ion exchange (mmol/min) | |
30.0 | 0.201 | 0.139 | 0.028 | 0.246 | 0.155 | 0.038 | 0.165 | 0.121 | 0.020 | 0.203 | 0.131 | 0.026 |
A i = 15,560 cpm | A i = 16,010 cpm | A i = 16,532 cpm | A i = 16,229 cpm | |||||||||
A f = 6,909 cpm | A f = 8,531 cpm | |||||||||||
A f = 7,725 cpm | ||||||||||||
A f = 6,084 cpm | ||||||||||||
35.0 | 0.188 | 0.133 | 0.025 | 0.235 | 0.153 | 0.036 | 0.148 | 0.113 | 0.017 | 0.194 | 0.125 | 0.024 |
A i = 15,779 cpm | A i = 15,043 cpm | A i = 15,976 cpm | A i = 16,101 cpm | |||||||||
A f = 5,837 cpm | A f = 8,755 cpm | A f = 8,050 cpm | ||||||||||
A f = 7,385 cpm | ||||||||||||
40.0 | 0.170 | 0.129 | 0.022 | 0.228 | 0.150 | 0.034 | 0.137 | 0.106 | 0.014 | 0.185 | 0.120 | 0.022 |
A i = 15,834 cpm | A i = 15,756 cpm | A i = 15,473 cpm | A i = 15,998 cpm | |||||||||
A f = 7,664 cpm | A f = 8,912 cpm | |||||||||||
A f = 8,319 cpm | ||||||||||||
A f = 6,302 cpm | ||||||||||||
45.0 | 0.156 | 0.125 | 0.020 | 0.219 | 0.150 | 0.033 | 0.125 | 0.102 | 0.013 | 0.178 | 0.114 | 0.020 |
A i = 15,601 cpm | A i = 15,539 cpm | A i = 16,001 cpm | A i = 15,678 cpm | |||||||||
A f = 7,800 cpm | A f = 9,473 cpm | |||||||||||
A f = 6,216 cpm | A f = 8,529 cpm | |||||||||||