2015 AIChE Spring Meeting and 11th Global Congress on Process Safety
(189a) Chemical Incompatibility Matrices
Author
Chemical Incompatibility Matrices
Michelle R. Murphy and Surendra K. Singh
ioKinetic, LLC
95 Stiles Road, Salem, New Hampshire 03079, USA
Abstract
Despite the promulgation of the “PSM Standard” by OSHA in 1992, chemical accidents continue to occur at an alarming rate. As part of the process safety information element of the PSM standard, OSHA requires reactivity data on the chemicals in the process. Part of this reactivity data is a chemical incompatibility matrix. Several software programs provide simple approaches to generating these incompatibility charts for common materials using assigned reactive groups. If your process involves materials not included, you are left to determine the reactivity and incompatibilities on your own. This presentation will explain a process for assigning reactive groups using chemical classification and structural analysis. This process can be used for less commonly understood materials such as additives, lubricants, etc. that may come into contact with process chemicals.
Keywords
Chemical incompatibility matrix, chemical reactivity, predicting reactivity, reactive chemistry