Copper(II) hexacyanoferrate13601-13-333 % similar Sodium ferrocyanide13601-19-933 % similar Prussian blue14038-43-833 % similar Sodium tricyanocuprate(I)14264-31-433 % similar Ammonium ferrocyanide14481-29-933 % similar Potassium niobate12030-85-231 % similar Potassium heptafluoroniobate(V)16924-03-131 % similar