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 Reed, M. G. Articles by Scott, A. D. Search for Related Content PubMed Articles by Reed, M. G. Articles by Scott, A. D. GeoRef GeoRef Citation Agricola Articles by Reed, M. G. Articles by Scott, A. D.

Chemical Extraction of Potassium from Soils and Micaceous Minerals with Solutions Containing Sodium Tetraphenylboron: IV. Muscovite¹

ABSTRACT

Methods of extracting the interlayer K in micaceous minerals with NaTPB solutions were modified to maximize the extraction of K from muscovite. In the method adopted, 0.500-g samples were placed in 10 ml of 2N NaCl-0.2N NaTPB-0.01M EDTA solution at 25C, and the precipitated K was separated with a boiling 0.5N NH₄Cl solution that contained HgCl₂. Even with this method, muscovite released its K much slower than did biotite. However, it was possible to remove 96% of the K in <10µ muscovite in 16 weeks. This was also the maximum amont of K that was extracted.

¹ Journal Paper No. J-5169 of the Iowa Agr. and Home Econ. Exp. Sta., Ames. Project No. 1234. This work was supported in part by the American Potash Institute.

² Formerly Research Associate now Research Chemist, Chevron Research Co., La Habra, California and Professor of Soils, respectively.

Received for publication September 2, 1965. Accepted for publication January 6, 1966.