it is shown for two amphoteric electrolytes , al ( oh ) ( 3 ) and gelatin , that in the presence of an acid salt water diffuses through a collodion membrane into a solution of these substances as if its particles were negatively charged , while water diffuses into solutions of these electrolytes , when they exist as monovalent or bivalent metal salts , as if the particles of water were positively charged .
C0013832
electrolytes
C0308944
solutions