Discussion on the type of metal salt solution used in ion exchange reactions
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An ion exchange reaction is carried out using a metal salt solution and wooden solid particles. Foreign literature generally uses metal nitrates for experiments. Why is metal nitrate used instead of metal sulfate or chloride?
Because among metal salts, only nitrates are completely soluble in water; if you choose other salts, such as sulfates, how can their calcium, barium, and lead salts be compared with other salts? Choosing nitrate for the experiment ensures broad applicability.
Meanwhile, when nitric acid digestion is used in subsequent analysis experiments, no impurities will be introduced.
{:1_90:} I see, thank you very much! !