Alkaline degradation of peat humic acids. Part I. Identification of lipophilic products

13Citations
Citations of this article
6Readers
Mendeley users who have this article in their library.

Abstract

Alkaline degradation of peat humic acids at 185 °C gives rise to a large number of lipophilic, chloroform-soluble compounds, which have been analyzed by capillary gas-liquid chromatography - mass spectrometry. Identified compounds included 50 aromatic compounds, 20 aliphatic mono- and di-carboxylic acids, 6 alkyl-substituted 2-cyclopentenones and 5 alkyl-substituted 2-hydroxy-2-cyclopentenones. Degradation in the presence of sodium sulfide (Na2S) produces some thiophenes and increases the number of phenolic compounds. The total yields of identified lipophilic compounds were 3.2 % in both the presence and absence of Na2S. The formation of thiophenes and alkylcyclopentenones suggests the presence of aliphatic 1,4-diketonic structures in peat humic acids.

Cite

CITATION STYLE

APA

Hänninen, K., & Niemelä, K. (1991). Alkaline degradation of peat humic acids. Part I. Identification of lipophilic products. Acta Chemica Scandinavica, 45, 193–199. https://doi.org/10.3891/acta.chem.scand.45-0193

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free