in this case water diffuses from the outside solution ( containing no salt ) into the inside solution ( containing the salt ) with a relative initial velocity which can be expressed by the following rules : ( a ) water diffuses into the salt solution as if the particles of water were negatively charged and as if they were attracted by the cation and repelled by the anion of the salt with a force increasing with the valency of the ion .
C0003075
anion
C0022023
ion