====WDI FOR IRON STAIN==== Take slide on which staining has to be performed along with positive control. Bring section to distilled water. Transfer section in to fresh solution of equal parts of 2% aqueous potassium ferrocyanide and 2% HCL for 30 minute. Wash thoroughly in several changes of distilled water. Counterstain with safranin for 10-15 seconds. Wash in water, dehydrate with alcohol, clear in xylene and mount with DPX. Dehydrate in alcohol, clear in xylene, mount with DPX