Water Solubilitysoluble in ethanol, slightly soluble in methanol, insoluble in ether.
Density1.558 g/cm3 @ Temp: 20 °C
Storage TempPotassium benzoate is stable at room temperature under normal
storage conditions. Since it is slightly hygroscopic, potassium
benzoate should be stored in sealed containers. Exposure to
conditions of high humidity and elevated temperatures should be
avoided.