ULTRAFINE PARTICLE OF PRUSSIAN BLUE-TYPE METAL COMPLEX, DISPERSION LIQUID THEREOF, AND THEIR PRODUCTION METHODS

摘要

Disclosed is a method for producing ultrafine particles of a Prussian blue-type metal complex wherein (A) an aqueous solution containing an anionic metal cyano complex having a metal atom M₁ as the central metal is mixed with an aqueous solution containing metal cations of a metal atom M₂ for precipitating a crystal of a Prussian blue-type metal complex having the metal atom M₁ and the metal atom M₂; then (B) a solution obtained by dissolving a ligand L in a solvent is mixed with the crystal of the Prussian blue-type metal complex for forming a dispersion liquid of ultrafine particles of the Prussian blue-type metal complex; and then (C) the Prussian blue-type metal complex is separated from the dispersion liquid as nanometer-sized ultrafine particles.