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Journal of the Korean Chemical Society (JKCS)

ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 13, Number 1
JKCSEZ 13(1)
February 20, 1969 

Studies on the Characteristics of Humic Acid and its Utilizations. (II) Characteristics of humic acid (Molecular weight, molecular and rational formula. Structure)

토탄흄산의 성상및 응용에 관한 연구 (제2보) 흄산의 성상
Won Taik Kim

By the chemical procedure and infra-red spectroscopy, the characteristics of humic acid were studied. The results were as follows: 1. Molecular weight. 5,200. 2. Molecular formula. C240H250O120N1O. 3. Rational formula. C214H222O68N1O{(-OH)8(phenol), (-COOH)8, (=CO)4, (-COO-)10, (-OCH3)4} 4. Confirmation of the accurate structure of humic acid is beyond us nowadays. The structure is speculated that it may be a kind of condensed polymer of many benzene kerns in which above mentioned various functional groups are attached. Also some part of the large quantities of oxygen would be furan type carbonyl and aliphatic ethereal forms.
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