Known as one of the world's major industrial chemicals natural soda ash plays a critical role in glass and ceramics industries, production of chemicals, cleansing and bleaching, and metallurgy. Natural soda ash is also preferable to synthetic types because its production is purer and requires less energy with virtually no harmful environmental effects. Essential data on the properties, sources, processing requirements, and applications of natural soda ash fill this guide, making it valuable to both manufacturers and users. The formation, occurrence and history of natural soda ash deposits are...

Potash is the term generally given to potassium chloride, but it is also loosely applied to the various potassium compounds used in agriculture: po tassium sulfate, potassium nitrate or double salts of potassium and magne sium sulfate (generally langbeinite, K S0 2MgS0 ). Sometimes the var 2 4 4 ious compounds are differentiated by the terms muriate of potash, sulfate of potash, etc. When referring to ores, or in geology, all of the naturally found potassium salts are called "potash ores." However, originally potash referred only to crude potassium carbonate, since its sole source was the...

least, the author wishes to thank his constantly helpful wife Maggie and his secretary Pat Weimer; the former for her patience, encouragement, and for acting as a sounding-board, and the latter who toiled endlessly, cheerfully, and most competently on the book's preparation. CONTENTS Preface / iii 1. INTRODUCTION / 1 Frequently Used Economic Studies / 2 Basic Economic Subjects / 3 Priorities / 3 Problems / 6 Appendixes / 6 References / 6 2. EQUIPMENT COST ESTIMATING / 8 Manufacturers' Quotations / 8 Estimating Charts / 10 Size Factoring Exponents / 11 Inflation Cost Indexes / 13 Installation...