Backed with a team of experienced professionals, we are engaged in manufacturing and supplying of Prussian Blue in Vapi, Gujarat, India. Prussian blue is a dark blue pigment with the idealized chemical formula Fe 7(CN) 18. To better understand the binding situation in this complex compound the formula can also be written as Fe 4[Fe(CN) 6] 3 xH 2O. Another name for the color is Berlin blue or, in painting, Parisian or Paris blue. Turnbull's blue is the same substance, but is made from different reagents, and its slightly different color stems from different impurities.Prussian blue was the first modern synthetic pigment. It is employed as a very fine colloidal dispersion, as the compound itself is not soluble in water. It is famously complex, owing to the presence of variable amounts of other ions and the sensitive dependence of its appearance on the size of the colloidal particles formed when it is made.