Nitrate ions can be bounded with other ions in a liquid medium containing significant amount of NaCl?
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Nitrate ions can form associated ion pairs with other ions in a liquid medium containing a significant amount of NaCl. Studies have shown that in solutions with varied concentrations of metal nitrates, such as LiNO3, NaNO3, Ca(NO3)2, Sr(NO3)2, Ba(NO3)2, Mn(NO3)2, Co(NO3)2, Ni(NO3)2, Cu(NO3)2, Zn(NO3)2, and Cd(NO3)2, associated ion pairs were observed at higher salt concentrations, except for Zn(NO3)2. The interaction between nitrate ions and cations, especially transition metals, differs significantly, with non-transition metal ion pairs exhibiting classical electrostatic interactions, while transition metal ion pairs show weak coordination interactions . Furthermore, electrodialysis using anion-exchange membranes has demonstrated higher selectivity towards nitrate ions compared to other ions like chloride, dihydrogen phosphate, and sulfate, even in the presence of NaCl in the solution .
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| Papers (5) | Insight |
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| Yes, nitrate ions can be accurately determined in solutions with high NaCl concentrations (>30,000 mg/L) by spiking samples with a nitrate standard to overcome interference, allowing reliable detection down to 25 µg/L. | |
4 Citations | Not addressed in the paper. |
14 Citations | Nitrate ions can be selectively separated from a mixed salt solution containing NaCl using anion-exchange membranes, as shown in the study on nitrate removal via electrodialysis. |
| Not addressed in the paper. | |
| Not addressed in the paper. |
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