MODELLING OF INDOOR RELEASES OF WATER REACTIVE TOXIC MATERIALS

摘要

This paper presents a case study to demonstrate the modelling of indoor releases of water reactive toxic materials. The materials of concern were phosphorus trichloride and phosphorus oxychloride, both of which are classed as very toxic, but which produce toxic hydrogen chloride gas on reaction with water. To assess the risk from the storage and handling of phosphorus trichloride and oxychloride, it is required to determine the extent and nature of the toxic gas cloud produced. In the far field, this gas cloud will be hydrogen chloride, and thus the source terms are required for the rate of production of hydrogen chloride following a spill of phosphorus trichloride or oxychloride. The methodology used for this modelling is described using phosphorus trichloride as the example.