The vapor pressures of saturated aqueous solutions of potassium chloride, potassium nitrate, ammonium chloride, ammonium sulfate, ammonium nitrate, ammonium dihydrogen orthophosphate, sodium nitrate, urea, and a mixture of ammonium chloride and potassium nitrate 1i:tve been measured at temperatures between 20" and 30". 2 . The relation of the vapor pressures of saturated aqueous solutions to the hygroscopic properties of soluble substances has been briefly discussed. 3 . The theory relating the

more »

... vapor pressure of a saturated solution to the temperature and solubility of the solid has been indicated.