Ammoniacal liquor is a solution that contains ammonia dissolved in water. It is typically produced during the distillation of coal or the processing of certain organic materials. This liquid has a strong, pungent odor and is often used in various industrial applications, including fertilizers and cleaning agents. In addition to its industrial uses, ammoniacal liquor can also be a byproduct in the production of ammonia and other nitrogen compounds. Its composition can vary depending on the source and method of production, but it generally contains a significant concentration of ammonia, making it useful for various chemical processes.