About Us | Help Videos | Contact Us | Subscriptions
 

Abstract

 

This article in SSSAJ

  1. Vol. 31 No. 5, p. 619-626
     
    Received: Jan 18, 1967
    Accepted: Apr 7, 1967


 View
 Download
 Alerts
 Permissions
Request Permissions
 Share

doi:10.2136/sssaj1967.03615995003100050006x

Titration of H-Clay Suspensions With Salt Solutions1

  1. I. Shainberg and
  2. J. E. Dawson2

Abstract

Abstract

A procedure is suggested by which H-clay free of both exchangeable aluminum and soluble acids can be prepared from Wyoming bentonite (KWK Volclay). H-clay obtained by this procedure was titrated with NaOH and sodium salts of boric, acetic, formic and nitrous acids. Titration with sodium tetraborate gave the permanent negative charge on montmorillonite particles both when this clay contained exchangeable aluminum and when it did not. Titration with the salts of the other acids gave the permanent negative charge of this clay only in the absence of exchangeable aluminum. The negative slope of the first segment of the conductivity curve obtained in the neutralization of H-clay with NaOH was very gradual, whereas, the corresponding slopes for both soluble strong acids and H-clays reported by most other investigators are very steep. This contrast in slope is a direct result of the very low salt contents of clay suspensions converted to H-clay in this study.

  Please view the pdf by using the Full Text (PDF) link under 'View' to the left.

Copyright © .