Soap-Making Manual: A Practical Handbook on the Raw Materials, Their Manipulation, Analysis and Control in the Modern Soap Plant.

"Soap-Making Manual" by Edgar George Thomssen is a practical handbook on the soap manufacturing process written in the early 20th century. This comprehensive guide explores the raw materials used, the methods of production, and the necessary analytical techniques related to soap-making. Intended for both industry professionals and enthusiasts, it covers everything from the types of fats and oils appropriate for saponification to the engineering requirements for a soap plant. The opening of the manual introduces the fundamental definitions of soap and its chemistry, outlining how soaps are the salts formed from alkali metals and fatty acids. It elaborates on the various oils and fats suitable for soap production, emphasizing the importance of understanding their properties and how they are affected by external conditions during the manufacturing process. The author sets the stage for a detailed exploration of the industry's complexities, establishing a clear focus on practical applications and methods that facilitate effective soap production while minimizing reliance on specialized chemical expertise.