A pharmaceutical product is designed to be absorbed in the gastrointestinal tract. The active ingredient is pressed into a tablet with a density of pA = 15 kg/m3 while the remainder of the tablet is composed of inactive ingredients.
The partition coefficient is K = 3 X 10-2, and the
(b) In the time required to achieve 25% of saturation at the top of the layer, how much salt is transferred from the bottom into the water per unit surface area (kg/m2)? The saturation density of salt in solution is pA,s = 380 kg/m3.
(c) If the bottom is depleted of salt at the time that the salt density reaches 25% of saturation at the top, what is the final (steady-state) density of the salt at the bottom? What is the final density of the salt at the top?