brake4country said:Transition metals are generally insoluble unless paired with another anion which is soluble.
An anion is a negatively charged ion, meaning it has gained one or more electrons. It is typically written with a minus sign (-) after the chemical symbol.
Silver ions can be toxic to the environment and can also cause adverse health effects in humans. Therefore, it is important to selectively remove them in order to prevent contamination and potential harm.
Anions can selectively remove silver ions through a process called ion exchange. This involves exchanging anions in a solution with the target silver ions, resulting in their removal from the solution.
Sulfide (S2-) is commonly used to selectively remove silver ions. This is because sulfide ions have a high affinity for silver ions and can easily form insoluble silver sulfide, which can be removed from the solution.
Yes, other anions that can be used include cyanide (CN-), thiosulfate (S2O3 2-), and thiourea (CS(NH2)2). These anions also have a high affinity for silver ions and can form insoluble compounds for removal.