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For consistency across studies, document solvent, concentration, storage temperature, freezethaw cycles, and light exposure conditions in experimental records
That single feature accounts for most of its practical behaviour: it is freely water-soluble, it does not aggregate, it has no conformational state to preserve, and it is supplied as a salt whose counterion is part of what you weigh
Label the vial with the preparation date and the concentration, noting whether the concentration refers to the iodide salt at 286.11 g/mol or to the free cation at 159.21 g/mol, since that choice changes every downstream molar calculation
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