HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via Google Scholar Google Scholar Articles by Martin, R. T. Search for Related Content PubMed Articles by Martin, R. T. Agricola Articles by Martin, R. T.

Ethylene Glycol Retention by Clays¹

ABSTRACT

By the inclusion of a free glycol surface with each batch of samples, the glycol retention method of Dyal and Hendricks is modified to give an equilibrium glycol retention value that is a constant for a given sample over a wide range of initital drying conditions. Within fairly wide limits, sample size, temperature and free iron oxides are found to have little effect on the equilibrium glycol retention value. Milligrams of glycol per gram of calcium saturated montmorillonoid or illite clay range from 260 to 295 and 65 to 80, respectively. Even at very low glycol retention values the experimental error does not exceed 5%. As well as retaining the highly desirable features of the original method, a simple gravimetric procedure requiring a minimum of special equipment, the proposed modification given a definite equilibrium value and requires a small sample (0.2 gm.). Relations between glycol retention, exchange capacity and percent K₂O are discussed for hydrous micas from mica to montmorillonoid.

¹ Contribution of the Massachusetts Institute of Technology Soil Stabilization Laboratory spousored by industrial contributions. The author gratefully acknowledges the financial assistance given by the sponsoring organizations and the advice and criticism offered by the Soil Stabilization Laboratory staff members. Presented before Div. II, Soil Science Society of America, St. Paul, Minn., Nov. 11, 1954.

Received for publication August 16, 1954.