CONTENTS C CHAPTER I. STANDARD SOLUTIONS. Standardizing Solutions-Potassium Bichromate, Potassium Permanganate, Potassium Ferro-cyanide, Potassium Cyanide, Sodium Thiosulphate, Ammonium Molybdate ............................................ 7-15 CHAPTER 11. SLAG ANALYSIS. Determinations-lead Slags Iron, Silica and Lime, Manganese, Zinc, Magnesium, Alumina Copper Slags Silica . and Iron, Lime, Copper Reverberatory Furnace Slags Silica and Iron, Copper, Mattes Conversion Table ............. C .. o . p . p . . e r . , . L .. e . a . d .. 16-26 CHAPTER 111. ORES. Silica, Iron and Lime Zinc Manganese Sulphur Copper and Lead Baryta Antimony and Arsenic Standard Iodine Solution Modification Mixture Beds Alumina, etc. Briquettes Silica and Iron, Lime ................................................... 27-39 I CHAPTER IV. COAL AND COKE. Proximate Analysis Coke ............................... 40-41 CHAPTER V. OTHER METHODS OF ANALYSIS. Antimony and Arsenic Pattensons Method modified Slags, 1 0 , Lime, Lead, Copper Colorimetric, to make up the standard, Copper in Slags and Tailings, Specimen Lead Slag Analysis Specimen Bed Analysis for Lead Smelter Specimen Briquette Analysis .............................................. 42-53 CHAPTER V1 CYANIDE PROCESS-DAILY WORK. Titratioils of Cyanide Solutions Titration of Alkalinity Estimation of Alkalies Manganese in Cyanide Solutions Estimation of Free Cyanide Estimation of Total Cyanide Estimation of HCN Estimation of Ferrocyanide by means of Potassiuni Permanganate Estimation of Thio-cyantes by means of Iodine Estimation of Total Cyano en Estimation of Zinc by Decomposition with H N . and HCl Estimation of Copper Estimation of Ggld Estimation of Silver Purple of Cassius Test for Gold Qualitative Detection of Gold Estimation of the Reducing Power f Solution Estimation of Alkaline Sulphides Estlmation of Sulphides by Col rimetricT e st with Sodium Nitro-Prusside Estimation of Bromo Cya-. nogeil and Potassium Bromate.. ...................... 54-83 CHAPTER VII. ESTIMATION OF OXYGEN IN WORKING CYANIDE SOLUTIONS. Apparatus Necessary Solutions Calculations Precautions Specimen Analysis of Mill Solutions.. .......... 84-92 CHAPTER VIII. ORE TESTING BY THE CYANIDE PROCESS. Prelixnlnary Tests Consumption Test Preliminary Ex traction Tests Roastlng Modification of Bottle Test Percolation Tests. .............................. 93-105 CHAPTER JX. THE ANALYSIS OF BRONZING AND BEARING METALS. Bronzes Determination of Phosphorous Bearing Metals ................................................ 1 06-110 CHAPTER X. REFINERY METHODS. Mill Slags Slags Silver Determination on Anode Copper by Fire Assay Bismuth in, Metallic Copper Electrolytic Copper Determination ................... . Ill-130 CHAPTER XI. THE LABORATORY. The Hot Plate Filter Racks Burette Stand Distilled Water Balances. Miscellaneous The Assay Ton System Impurities in C. P. Acids . . Hydrochloric Acid Nitric Acid Sulphuric Acid Ammonia International Atomic Weights ......................... .131-144 PREFACE... --This text refers to an alternate Paperback edition.