# How can I make a saturated solution of potassium iodide?

Jun 9, 2018

And add the salt to approx. $5 - 10 \cdot m L$ of water UNTIL such time that there is undissolved solute.... As always, a saturated solution is a solution that contains the SAME amount of solute as would be in equilibrium with undissolved solute...
$K I \left(s\right) \stackrel{{H}_{2} O}{r} i g h t \le f t h a r p \infty n s {K}^{+} + {I}^{-}$
When NO MORE solute dissolves, i.e. you can see crystals of $K I$ after stirring, the supernatant solution in saturated with respect to $K I$. This site gives a solubility of approx. $1.5 \cdot g \cdot m {L}^{-} 1$... As always, $\text{saturation}$, and $\text{supersaturation}$ refers to an equilibrium property.