HYDROXAMIC ACIDS AND THEIR ANALYTICAL APPLICATIONS

CONTENTS Page INTRODUCTION 5 PREPARATION OF HYDROXAMIC ACIDS 6 Properties 7 APPLICATION OF HYDROXAMIC ACIDS IN ANALYTICAL CHEMISTRY 7 Gravimetric Determinations 7 General Procedure for the Gravimetric Determination 11 Separation and Gravimetric Determination of Rare Earths with N-m-tolyl-m-nitrobenzo-hydroxamic Acid 11 Separation and Gravimetric Determination of Cerium: Separation from Common Metal Ions 12 Separation of Cerium from Rare Metals 12 Separation and Gravimetric Determination of Lanthanum, Praseodymium Neodymium, Samarium and Gadolinium from Common Metal Ions 12 Separation and Determination of Lanthanum from Rare Metals 13 Separation and Determination of Praseodymium from Rare Metals 13 Separation and Determination of Neodymium from Rare Metals 13 Separation and Determination of Samarium (III) from Rare Metals 13 Separation and Determination of Gadolinium (III) from Rare Metals 13

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