Fire and explosion prevention requires the knowledge of the explosive or flammability parameters of combustible gases and vapours
that can be found in industrial and civil environments, as well as the influence of certain substances in the process on these
parameters. In some cases, pyrophoric sulphides can be formed and it is supposed that they may influence the known flammability
parameters of the substances used in various industrial processes.
In order to track the influence of iron sulphides on the flammability parameters of liquids, determinations of these parameters (flash
point and auto-ignition temperature) were made for a series of flammable liquids that have been contaminated with various quantities
of commercial iron sulphide.