Research Article

Estimation of Free Phenolic Groups in Lignin

Volume: 15 January 1, 1968
Aral Olcay

Estimation of Free Phenolic Groups in Lignin

Abstract

A method has been developed for the determination of free phenolic groups in softwood lignin. It is based on the colour reaction occurring between 1-nitroso 2-naphthol and eugenol. The colour reaction of l-nitroso-2—naphthol with a variety of substances containing one or two guaiacyl nuclei (representing probable structural prmcipales of lignin) has been investigated. The number of free phenolic hydroxyls per methoxyl group in milled soft wood lignin was determined. Satisfactory agreement was obtained with results reported in the earlier literatüre.

Keywords

Estimation, Phenolic, Lignin

References

  1. Ankara Üniversitesi Communications, Series B: Chemistry and Chemical Engineering
APA
Olcay, A. (1968). Estimation of Free Phenolic Groups in Lignin. Communications Faculty of Sciences University of Ankara Series B Chemistry and Chemical Engineering, 15. https://izlik.org/JA43RM48PT
AMA
1.Olcay A. Estimation of Free Phenolic Groups in Lignin. Commun. Fac. Sci. Univ. Ank. Ser. B. 1968;15. https://izlik.org/JA43RM48PT
Chicago
Olcay, Aral. 1968. “Estimation of Free Phenolic Groups in Lignin”. Communications Faculty of Sciences University of Ankara Series B Chemistry and Chemical Engineering 15 (January). https://izlik.org/JA43RM48PT.
EndNote
Olcay A (January 1, 1968) Estimation of Free Phenolic Groups in Lignin. Communications Faculty of Sciences University of Ankara Series B Chemistry and Chemical Engineering 15
IEEE
[1]A. Olcay, “Estimation of Free Phenolic Groups in Lignin”, Commun. Fac. Sci. Univ. Ank. Ser. B, vol. 15, Jan. 1968, [Online]. Available: https://izlik.org/JA43RM48PT
ISNAD
Olcay, Aral. “Estimation of Free Phenolic Groups in Lignin”. Communications Faculty of Sciences University of Ankara Series B Chemistry and Chemical Engineering 15 (January 1, 1968). https://izlik.org/JA43RM48PT.
JAMA
1.Olcay A. Estimation of Free Phenolic Groups in Lignin. Commun. Fac. Sci. Univ. Ank. Ser. B. 1968;15. Available at https://izlik.org/JA43RM48PT.
MLA
Olcay, Aral. “Estimation of Free Phenolic Groups in Lignin”. Communications Faculty of Sciences University of Ankara Series B Chemistry and Chemical Engineering, vol. 15, Jan. 1968, https://izlik.org/JA43RM48PT.
Vancouver
1.Aral Olcay. Estimation of Free Phenolic Groups in Lignin. Commun. Fac. Sci. Univ. Ank. Ser. B [Internet]. 1968 Jan. 1;15. Available from: https://izlik.org/JA43RM48PT