5.6g of Ferric chloride hexahydrate and 6.7g of ferrous sulphate were dissolved in 50ml of 0.5M HCl. 10mL of the prepared methanolic extract was added. 90 ml of 1.5M Sodium Hydroxide was added dropwise to the solution which is 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. Around 83mL of Sodium Hydroxide was needed to obtain the viscous jet-black coloured precipitate.