Übersättigte Lösung eines anorganischen gelösten Stoffes in einem wässrigen Lösungsmittel und Verfahren zu ihrer Herstellung

摘要

A method of preparing a supersaturated solution of an inorganic solute in an aqueous solvent for use in treating wood by impregnating involves mixing an aqueous solvent and salt solute together with an organic dopant comprising an emulsifier and an oil or wax, so that the eventual solution comprises an aqueous phase in which the solute is dissolved, the proportions of the constituents being selected so that the aqueous phase is a supersaturated solution of the inorganic salt solute in the solvent. Preferably the inorganic solutes are wood preservative or flame retardant additives for wood, and examples are mono- or di-ammonium phosphate, ammonium chloride, ammonium sulphate, borax zinc chloride, orthophosphoric acid, boric acid, ammonium sulfamate, sodium oxyfluoroborate hydrate, ammoniacal basic zinc chloride, zinc octaborate, disodium octaborate tetrahydrate, ammonium biborate, ammonium pentaborate or mixture of these.