Abstract
The standard method for determining the Kappa Numbers of paper pulps has been evaluated, modified and applied for estimation of Lignin in different samples of jute. The values of the lignin content as determined from the Kappa Numbers of different samples of jute showed conformity with the values of Klason lignin estimated by sulphuric acid method. The method consisted in determining by titration the amount of potassium permanganate reduced by the lignin content of jute fibre. The developed method is easier to follow in comparison with the tedious gravimetric analysis of lignin using corrosive inorganic acid.