... Purity:98%min 4 Appearance:White cryatal Para Toluene Sulfonic Acid, Monohydrate p-toluenesulfonic acid CAS NO.CAS NO of anhydrous material:6192 ... bag, or 25kg Cardboard barrelIt dissolves in water, ethanol, aether, benzene, has medium toxicity, and is pungent to the skin, eye ... . In use. It should be avoided of getting in touch with bodies and clothes Para Toluene Sulfonic Acid, Monohydrate