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Determination of point of zero charge and acid—base superficial coal groups in water

✍ Scribed by Tayssir Hamieh; Bernard Siffert

Publisher
Elsevier Science
Year
1991
Weight
990 KB
Volume
61
Category
Article
ISSN
0166-6622

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📜 SIMILAR VOLUMES

Determination of acidic functional group
Determination of acidic functional groups in low-rank coals: comparison of ion-exchange and non-aqueous titration methods
✍ Thomas P. Maher; Harry N.S. Schafer 📂 Article 📅 1976 🏛 Elsevier Science 🌐 English ⚖ 395 KB

Acidic functional groups in five low-rank coals from various parts of the world have been determined by aqueous ion exchange and non-aqueous titration procedures. The total acidity found by titration was, in general, significantly higher than that obtained by ion exchange at pH 13 for all the coals.