Alcoholic solutions of equal weights of different brands of soaps are made up by the instructor. No attempt is made to standardize these solutions against a standard calcium chloride solution. These solutions should be distinguished by letter rather than by name. One or more students may be assigned to same soap solution.
Proceedings of the Iowa Academy of Science
©1932 Iowa Academy of Science, Inc.
Lowman, O. E.
"Comparative Cost of Soap as a Water Softener,"
Proceedings of the Iowa Academy of Science, 39(1), 159-159.
Available at: https://scholarworks.uni.edu/pias/vol39/iss1/29