Potassium argentocyanide506-61-640 % similar Potassium dicyanoaurate554-07-440 % similar Potassium tetracyanomercurate(II)591-89-940 % similar Dipotassium tetracyanoplatinate(2-) trihydrate14323-36-533 % similar Tetrasodium hexacyanoferrate(4-) decahydrate14434-22-133 % similar Potassium ferrocyanide trihyrate14459-95-133 % similar