Sodium perchlorate
= Sodium perchlorate
{title2=$\mathrm{NaClO}_4$}
<Sodium perchlorate> is the ionic salt $\mathrm{NaClO_4}$, containing sodium cations and perchlorate anions. Its aqueous solution supplies dissolved ions whose interactions with <water> can be investigated spectroscopically.
In <spectroscopic measurement of hydration dynamics>, sodium perchlorate supplies the salt environment for a selectively observed water response. An observed relaxation concerns the chosen spectroscopic probe and solution conditions, rather than a permanently fixed hydration cage.