Adjective
potassic (not comparable)
(chemistry) Containing potassium.
Potassium hydroxide is used for industrial water treatment and is the precursor of potassium carbonate, several forms of potassium phosphate, many other potassic chemicals, and soap manufacturing. Source: Internet
Conversely, these fluids may metasomatically alter a rock, introducing new Rb and Sr into the rock (generally during potassic alteration or calcic ( albitisation ) alteration. Source: Internet