Mass transfer with stagnant continuous phase

Also, when the wall of the stirring vessel is preferently wetted by the dispersed phase, the wall may be covered with a thin stagnant layer of dispersed phase, which may act, more or less, as a dead corner in so far as the chemical reaction is slowed down by poor mass transfer. However, there still may occur a continuous coalescing of dispersed drops with these stagnant layers and corners, while on the other hand these dead corners will continuously lose new drops, which are taken up again in the living dispersed phase. In this way the dead corners act as a medium of interaction. 

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