Phthalocyanine blue in aqueous solutions

摘要

Using laponite nano-clay carriers, a facile method for the solubilisation of natively insoluble phthalocyanines into aqueous solution is described. Copper( II ) phthalocyanine, technologically a most relevant pigment (C.I. Pigment Blue 15), thus yields hitherto unknown clear and stable aqueous dispersions of either colloidal α-CuPc or monomeric CuPc, depending on details of the preparation.