This is NileRed's video on the mononitration of phenol. He does it using the standard textbook way of using $\ce{H2SO4}$ to produce a nitronium ($\ce{NO2+}$) ion from $\ce{NaNO3}$ (or just $\ce{HNO3}$). He does all of this within an ice bath, maintaining a temperature of under $\pu{20^\circ C}$ f...
The Periodic Table
The Periodic Table