HETEROGENEOUS EQUILIBRIA 257 



TABLE GIL 

 SOLUBILITY OP WEAK ACIDS IN THE PRESENCE OF OTHER ACIDS. 



A. Salicylic Acid in the Presence of Formic Acid. 



Solubility, Solubility, 



Formic acid, gravimetric, volumetric, 



per cent. mols per liter. mols per liter. 



0.00 0.01631 0.01634 



0.24 0.01531 



0.46 .... 0.01474 



0.625 0.01484 



1.25 0.01496 



2.5 0.01536 



5.0 0.01716 



10.0 0.02101 



B. Solubility of Hippuric Acid in the Presence of Formic Acid. 



Solubility, Solubility, 



Formic acid, gravimetric, volumetric, 



per cent. mols per liter. mols per liter. 



0.00 0.02045 0.02048 



1.25 0.02014 



2.5 0.02078 



5.0 0.02275 



10.0 0.02661 



C. Solubility of Salicylic Acid in the Presence of Acetic Acid. 



Acetic acid, Solubility, gravimetric, 



per cent. mols per liter. 



0.00 0.01631 



0.625 0.01691 



1.25 0.01745 



2.5 0.01846 



5.0 0.02059 



D. Solubility of Salicylic Acid in the Presence of Hydrochloric Acid. 



Hydrochloric Solubility, Solubility, 



acid, gravimetric, volumetric, 



normal. mols per liter. mols per liter. 



0.01631 0.01634 



0.0179 0.01290 



0.0357 .... 0.01238 



0.125 0.01214 



0.25 0.01194 



0.5 0.01123 



