CRYSTALLINE DIMETHYLAMINOMETHANE-DIPHOSPHONIC ACID: THE EXISTENCE OF ANHYDROUS AND MONOHYDRATE FORMS

Lawrence H. Merwin Bayerisches Geoinstitut, Universität Bayreuth, Postfach 10 12 51, 0-8580, Bayreuth, Federal Republic of Germany

Wayne A. Dollase Bayerisches Geoinstitut, Universität Bayreuth, Postfach 10 12 51, 0-8580, Bayreuth, Federal Republic of Germany; Department of Earth and Space Sciences, University of California, Los Angeles, CA, 90024, USA

Gerhard Hagele Institut für Anorganische Chemie und Strukturchemie, Heinrich-Heine-Universität Düsseldorf, Universitätsstraße 1, D-4000, Düssldorf, 1, Federal Republic of Germany

Helmut Blum Henkel KGaA, Henkelstraße 67, Postfach 1100, D-4000, Düsseldorf, 1, Federal Republic of Germany

Abstract

There has been some discrepancy in the literature as to whether solid dimethylarninornethanediphosphonic acid existed as the anhydrous form or the monohydrate. We report the synthesis and characterization of both forms. ³¹P solid-state NMR data are given.

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CRYSTALLINE DIMETHYLAMINOMETHANE-DIPHOSPHONIC ACID: THE EXISTENCE OF ANHYDROUS AND MONOHYDRATE FORMS

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CRYSTALLINE DIMETHYLAMINOMETHANE-DIPHOSPHONIC ACID: THE EXISTENCE OF ANHYDROUS AND MONOHYDRATE FORMS

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