How should 4-Ethylbenzenesulfonic acid (CAS: 98-69-1) be stored?

4-Ethylbenzenesulfonic acid (CAS: 98-69-1) should be stored in a cool, dry place at a temperature not exceeding 25°C. It should be kept away from direct sunlight and sources of ignition. The container should be tightly sealed to prevent evaporation and exposure to air. It is recommended to store it in a well-ventilated area away from incompatible materials such as strong oxidizers and bases.