...
The clay and alum stock solutions can get old after no experiments have been running for quite some time. Because of processes like evaporation that we can not control, we can never be sure that the concentrations in the stocks are the same as we made them. If an experiment is going to be started after a long time from the last experiment, than the stocks should be remade in order to make sure that all parameters are the same across all experiments.
Back to Tube Floc Home Page