According to Wikipedia, fluoride is the anion of choice because fluoride salts are poorly soluble, stable in their molten state, don't become radioactive under bombardment, and moderate neutrons well. Apparently chlorides are less desirable because they have to be pure Cl37 to prevent the buildup of dangerous and unstable SCl4.
Last edited by Rat Diva; 12th June 2024 at 07:17 AM.
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