Black phenylis a successful disinfectant and is used to kill germs and bacteria. It leaves disinfectant smell after application and leaves no residue where used. It cleans the surface, nursing homes and maternity homes, and so on. It is used in hospitals, offices, homes, railway stations, army bases and Public Utilities, and so forth.*************Black phenyle (sometimes written as phenyl) is a dark brown or black liquid that is manufactured as a powerful disinfectant. Black phenyle is most often used in hotels, hospitals, military facilities, homes, and animal farms, among other places. Black phenyle is very powerful and can effectively disinfect even when it is very dilute. For this reason, it is economically beneficial for large facilities to keep a stock of concentrated black phenyle and dilute it with water. Just be sure to wear gloves and goggles when making black phenyle solution, as it can be dangerous.