In order to compare the two views as to the cause of the acidity developed when a soil is treated with a neutral salt solution (selective adsorption and base exchange theories) colloidal copper ferrocyanide was treated with different salt solutions of varying strengths and the alkalinity or acidity developed was compared with the amount of copper dissolved. Potassium salts developed a whole series from a small amount of acidity to a large amount of alkalinity.
Proceedings of the Iowa Academy of Science
©1924 Iowa Academy of Science, Inc.
Frankert, Mikkel and Wilkinson, J. A.
"Adsorption from Salt Solutions by Colloidal Copper Ferrocyanide,"
Proceedings of the Iowa Academy of Science, 31(1), 279-279.
Available at: https://scholarworks.uni.edu/pias/vol31/iss1/61