Vol. 7, Issue 5 (2019)
Modification in protocol for estimation of Klason-lignin content by gravimetric method
Author(s): Ravindra Kumar Dhaka, SK Sinha, RP Gunaga and NS Thakur
Abstract: Plant biomass is mainly comprises of cellulose, hemicelluloses and lignin. Estimation of Klason-lignin content is important for delignification during pulping process in pulp and paper industries. To estimate Klason-lignin, four different available volumetric methods were compared using wood samples of M. dubia along with different concentration of H2SO4. Result revealed that the optimal concentration of 72% H2SO4 solution on weight by weight (w/w) basis is suitable for acceptable estimation of Klason-lignin content from wood samples. Further, it requires 600.80 ml of concentrated H2SO4 (in the case of 98% purity, sp. gr. 1.84, 18.4 mol/l) and 399.20 ml of distilled water for preparation of 1 litre of 72% (w/w) H2SO4, for estimation of Klason-lignin content in wood samples of M. dubia and other hardwood species.
Pages: 2661-2664 | 430 Views 134 Downloads
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How to cite this article:
Ravindra Kumar Dhaka, SK Sinha, RP Gunaga, NS Thakur. Modification in protocol for estimation of Klason-lignin content by gravimetric method. Int J Chem Stud 2019;7(5):2661-2664.
