Fundamentals of Detergents

Fundamental principles of detergents. How to mix basic chemicals to suit each clean- 7 ing problem. Five experiments explain cleaning action of a synthetic detergent. Photographs and drawings. (CDC-5- 079; 72 frames, synchronized disc, 9 minutes) 41 Fundamentals of End Cutting Tools U.S. Office of Education, 1944. Reviews material presented in motion picture