التفاصيل البيبلوغرافية
| العنوان: |
The composition of humic substances isolated from mongolian brown coal |
| المؤلفون: |
Monkhzhargal Sh., Novikova L.N., Medvedeva S.A., Kushnarev D.F., Rokhin A.V., Dashitsyrenova A.D., Kalabin G.A. |
| المصدر: |
Solid Fuel Chemistry |
| سنة النشر: |
2020 |
| المجموعة: |
NORA (National aggregator of open repositories of Russian universities) / Национальный агрегатор открытых репозиториев российских университетов |
| مصطلحات موضوعية: |
Functional groups, Humic substances, Low-calories, Low-metamorphized, Infrared spectroscopy, Macromolecules, Nitric acid, Nuclear magnetic resonance, Oxidation, Potentiometers (electric measuring instruments), Solutions, Ultraviolet spectroscopy, Lignite |
| الوصف: |
Methods of elemental analysis, gel-filtration, potentiometry, IR and UV spectroscopy and also 13C NMR were used to study the specific structural features of humic substances separated from low-metamorphized low-calorie brown coal and its residue left after the separation of free humic substances and oxidized by a solution of nitric acid. Treatment of brown coal with nitric acid (15%) leads to an increase in the yield of humics, a change in the content of functional groups and also to the degradation and nitration of the macromolecules. © 2006 by Allerton Press, Inc. |
| نوع الوثيقة: |
article in journal/newspaper |
| اللغة: |
English |
| العلاقة: |
https://openrepository.ru/article?id=253888Test |
| الإتاحة: |
https://openrepository.ru/article?id=253888Test |
| حقوق: |
open access |
| رقم الانضمام: |
edsbas.79F1865A |
| قاعدة البيانات: |
BASE |
