and that the osmotic pressure of a gelatin-acid salt with a monovalent anion ( e.g . cl , no ( 3 ) , acetate , h ( 2 ) po ( 4 ) , hc ( 2 ) o ( 4 ) , etc . ) is about twice or perhaps a trifle more than twice as high as the osmotic pressure of gelatin sulfate where the anion is bivalent ;
C0038720
sulfate
C0003075
anion