Analysis of Noble Metals
Overview and Selected Methods
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Analysis of Noble Metals: Overview and Selected Methods describes simple techniques with useful sensitivity, accuracy, and precision for noble metal analysis. This book is composed of seven chapters that include the methods of atomic absorption, spectrochemical, spectrophotometric, gravimetric, volumetric, and potentiometric determinations of noble metals. Each chapter discusses the concept, principles, practice, and application of the specific analytical technique. A chapter examines several separation methods for noble metals, including cation exchange, mercury amalgam, reduction, silver assay beads, solvent extraction, and dissolution. This book will be of great value to analytical chemists, instrumental engineers, and researchers.
Table of Contents
Preface
Acknowledgments
Part I
Chapter 1 Atomic Absorption
Introduction
Gold
Platinum
Rhodium
Iridium
Osmium
Multielements
Chapter 2 Spectrochemical Analysis of the Platinum Metals
Introduction
The Development of Combined Fire Assay and Spectrochemical Methods
The Development of the Richvale Method
The Determination of Trace Impurities in the Refined Platinum Metals
Recommended Methods
The Determination of Higher Concentrations of Platinum Metals
Qualitative Spectrochemical Analysis
Chapter 3 Spectrophotometry
Introduction
Gold
Palladium
Platinum
Platinum and Palladium
Platinum
Rhodium
Iridium
Ruthenium
Osmium
Chapter 4 Gravimetric Determinations
Introduction
Gold
Palladium
Platinum
Rhodium
Iridium
Ruthenium
Osmium
Chapter 5 Volumetric Determinations
Introduction
Gold
Palladium
Platinum
Iridium
Osmium
Chapter 6 Fire Assay
Introduction
Preparation of Samples
Fluxes
Fusion Temperatures
Lead Buttons
Scorification
Cupellation
Assay of Concentrates Relatively Free from Base Metal Sulfide
Procedure for Nitre Assay
Procedure for Assaying Roasted Sulfide Ores
Iron—Copper—Nickel Collection
The Fire Assay for Platinum Metals Using Nickel Sulfide as a Collector
The Determination of Osmium in a Nickel Sulfide Button
Tin as a Collector
The Determination of Osmium and Ruthenium in Siderite Meteorites (and in Iron—Copper—Nickel Assay Buttons)
Part II
Chapter 7 Methods of Separation
The Determination of Gold in Cyanide Solutions
The Mercury Amalgam Methods
Cation Exchange Separation of Gold Ores
The Separation of Rhodium from Iridium
Reduction by Copper
The Separation of Rhodium and Iridium by Solvent Extraction
The Determination of Iridium in the Presence of Platinum
The Determination of Osmium and Ruthenium in Lead Alloys
The Gravimetric Determination of the Six Platinum Metals
The Cation Exchange Separation of Platinum Metals from Large Proportions of Base Metals
Wet Separation and Determination of Platinum, Palladium, Rhodium, and Gold in Ores and Concentrates
The Determination of Noble Metals in Silver Assay Beads
The Solvent Extraction of Gold, Palladium, Platinum, and Silver by Dithizone
The Wet Determination of the Six Platinum Metals in High Concentrations
Chromatographic Methods
The Determination of Osmium, Ruthenium, Palladium, Platinum, Rhodium, and Iridium
The Dissolution of Platinum and Other Noble Metals by Pressure Technique
Precipitation of Platinum by Zinc
The Use of Sodium Nitrite as a Separatory Reagent for Gold and Base Metals from Solutions of Platinum Metals
Cupellation of the Lead Assay Button and Parting the Silver Bead
References
Index
Product details
- No. of pages: 344
- Language: English
- Copyright: © Academic Press 1977
- Published: December 28, 1977
- Imprint: Academic Press
- eBook ISBN: 9780323155021