A procedure for the preparation of the liquid composition, in which the active substance, Oil and Ionic Liquid are placed in contact； and also the use of Ionic Liquid to increase the solubility of the active substance in oil.Claim 1: a Liquid composition which contains: (a) an active substance is poorly water soluble Organic and sparingly Soluble in oil, in dissolved form, (b) an Oil that is Soluble in water at 20c until at least 20 g / l, and (c) an Ionic Liquid comprising A cation and an anion, which contains an Ammonium cation of the formula (1): (1) n u207ar u00b9r u00b2r u00b3r u2074 and r u00b9, R u00b2,R u00b3 and r u2074, independently of each other, which can be substituted with alkyl Radicals heterofuncionales can form groups and aliphatic Ring systems with each other； an imidazolium of formula (2), and r u2075 r u2076 represents Hydrogen or alkyl, R represents alkyl, and r u2077 Epresenta Hydrogen or alkyl, a Derivative of N - substituted Pyridinium； a derivative n,N - disubstituted of pirazolio； or a Derivative of guanidinium. The composition according to claim 7: one of claims 1 to 6, in which the active substance is an Agrochemical active substance.9: the composition according to claim one of claims 1 to 8, wherein the oil is an aromatic hydrocarbon, a alcanoato alkyl amide, Fatty acid ester, a dialqu u00edlico a alquildioico acid.The composition according to claim 10: one of claims 1 to 9, wherein the anion contains a carboxylate, sulfonate, sulfate, phosphate, phosphonate, halogen, bis (imide trifluorosulfonil TETRACHLORIDE), Aluminium fluoride, Phosphorus, or dicianimida.Claim 14: a procedure for the preparation of the liquid composition as one of claims 1 to 6, wherein the active substance, Oil and Ionic Liquid are placed in contact.Claim 15: the use of Ionic Liquid as one of claims 1 to 14 characterized by increase the solubility of the active substance in accordance to one of claims 1 to 13 in an oil as one of claims 1 to 13.También un procedimi
