“…Liquid PCAs include toluene, 1,4-dioxane, aniline, isopropyl alcohol, ethyl acetate, pyridine, acetone, ethanol, methanol, N-dimethyl formamide, cyclohexane (C 6 H 12 ) water [ 75 ]. And hexane and polyethylene glycol [ 76 ]. A solid PCA is a stearic acid .…”