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Sulphomethylation of humic acids, lignites and coals

✍ Scribed by S.E. Moschopedis


Publisher
Elsevier Science
Year
1970
Tongue
English
Weight
162 KB
Volume
49
Category
Article
ISSN
0016-2361

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Humic acids (HA) extracted from a lignite with two alkaline reagents have been studied. In contrast to humic acids extracted from soil HA, the lignite acids show no differences in their physical and chemical analyses with the exception of the total carbonyl content. After acid hydrolysis the analyti