Dissolution rate equations in column-confined dissolution.
Equations are derived for the dissolution of a soluble solid in a column into a liquid stream. The equations are substantiated by experiments using oxalic acid dihydrate as a test substance. The dissolution rate constant, k, of oxalic acid dihydrate depends on linear velocity, v (centimeters per second), by the following equation: k = (2.54 +/- 0.76) X 10(-4) v, where k is measured in centimeters per second.
Chemistry, Physical↗