Question

what factors makes the separation of lanthanides of formidable task?
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Answer 1

Answer:

Ionic size similarity, +3 C constant charge, and low charge radius ratio are the three main reasons that make lanthanides separation a formidable task.

Explanation:

• Because of the similarities in the physical and chemical characteristics of lanthanides, they are challenging to distinguish from one another.
• The majority of separation procedures benefit from a little reduction in ionic radius that happens across the lanthanide series. Two liquids are used in these separation techniques.
• The liquids resemble water and oil.
• The extractant liquid, which is enclosed by layers of water molecules, draws out the target lanthanide complex during the mixing process. The ligands, or arms, in the extractant liquid are what grasp the lanthanide.
• The reduction in ionic radius would cause extraction to rise continuously throughout the series for a perfect ligand. In other words, the ligands would capture more lutetium than lanthanum, the lanthanide with the shortest radius (with the largest radius)

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