Physical Sciences and Mathematics Commons^™

Geology And Ground Water Resources Of Burke, Divide, Mountrail, And Williams Counties In North Dakota, Andrew G. Alpha

Theses and Dissertations

No abstract provided.

A Study Of The Colloid Obtained From Weathered Lignite, Cecil O. Lohn

Theses and Dissertations

When Lignite is exposed to the action of weather it undergoes various changes, probably due to oxidation. Surface beds of lignite are often rejected by the miners as inferior coal, due to the weathered condition. But when this weathered lignite is treated with sodium hydroxide, and the resulting solution allowed to evaporate to dryness, there is left a hard, shiny substance very similar in appearance to hard coal. This dried product has been exploited under the name of Dakolite. When dispersed in water this product makes a very good wood stain.

Tests made on Dakolite show that it has colloidal …

Geology Of The Killdeer Mountains, Dunn County, North Dakota, Terence T. Quirke

Theses and Dissertations

No abstract provided.