5.6g of Ferric chloride hexahydrate and 6.7g of ferrous sulphate were dissolved in 50ml of 0.5M HCl. 90 ml of 1.5M Sodium Hydroxide solution was added dropwise to the solution which was under vigorous mixing on a hot plate stirrer set at 80 degree Celsius and 100rpm. The pH of the solution was observed to be highly basic (pH 12), on obtaining a viscous and jet-black colouration, transfer the solution to 50 ml centrifuge tubes. Approximately 83mL of Sodium Hydroxide was needed to obtain the viscous jet-black coloured precipitate. Centrifuge the solution at 2000 rpm for 2 minutes. Followed by the washing step where we discard the supernatant and add 10 ml of distilled water and dislodge the pallet. Perform the washing step 5-6 times until the pH of the solution is neutral (pH 6.5). Finally, discard the supernatant and transfer the pellet to a Petri plate and place it in a hot air oven set to 60 degrees Celsius for strictly 8 hours to avoid crystallization. Scrape out the powdered particles using a sterilized spatula and store them in 1.5ml tubes away from sunlight.