When it is used as chemical sensitizing agent in the X-ray film,the sensitivity of the emulsion is increased and the stability of the film is improved.

• 在X射线胶片中它能提高乳剂的感光度,同时能提高胶片的稳定性;它是1种显影促进剂,缩短了显影时间;它还是1种表面活性剂,能减小卤化银的表面能量,有利于其它增感剂的作用。