CHAP. PAGE PREFACE v I. INTRODUCTION 1 II. SULPHURIC ACID AND SULPHATES 10 III. NITRIC ACID AND NITRATES 28 IV. THE HALOGEN ACIDS 43 V. CARBONIC ACID AND CARBONATES 49 VI. PHOSPHORIC, BORIC, AND SILICIC ACIDS 56 VII. ORGANIC ACIDS 67 VIII. MILD ALKALI 80 IX. CAUSTIC ALKALIS 95 X. ELECTROLYTIC METHODS 101 INDEX 109