Kirov St Petersburg State Forest Technical Academy

Saint Petersburg, Russia

Kirov St Petersburg State Forest Technical Academy

Saint Petersburg, Russia
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Glyad V.M.,Syktyvkar Forest Institute | Ponomarev D.A.,Kirov St Petersburg State Forest Technical Academy | Politova N.K.,Syktyvkar Forest Institute
Russian Journal of Bioorganic Chemistry | Year: 2011

The residual lignin from samples of unbleached and bleached hardwood sulfate pulp was isolated by an aqueous acetic acid solution in the presence of zinc chloride. The resulting lignin was analyzed by 13C NMR and infrared Fourier spectroscopy, potentiometric titration, and cryoscopy. Physicochemical and spectral characteristics provide some insight into the structure of the residual lignin from sulfate pulp. © Pleiades Publishing, Ltd., 2011.

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