Around 4:10 pm, six people were killed by the explosion of nearly 300 tonnes of expired munitions and production wastes inside the "Steingletscher" underground storage, located on the slope of the Susten pass facing Bern. The explosion, whose TNT equivalent[...]
Inside a plant specialised in thio-chemistry, an explosion occurred at 9:55 am on a unit undergoing a restart procedure, less than one year after major facility modifications. Following the unintentional intake of ammonia into the oven on an acid nitrosyl[...]
An explosion perceived tens of km around and an ensuing fire destroyed 1,000 of the 4,000 m² of a hydrogen peroxide unit (H2O2) located near a series of hydrogen and chlorine tanks. The fire spread into the adjoining sewers, and[...]
Within a refinery storage zone, the shell of a fragile 15,000-m³ tank (at the end of its filling cycle) containing 13,500 m³ of HTS residue (at 130°C) split open. The flow of HC then destroyed two other tanks (15,000 m³[...]
An explosion and a fire occurred during the night in a chemical plant during the manufacture of a silicon oil- and additive-based waterproofing agent. A junior technician (hired 6 months back), recently assigned to this post, was left without supervision[...]
At a warehouse storing unknown contents, the self-sustaining decomposition of a stockpile of 850 tonnes of fertiliser NPK 15-8-22 delivered five days earlier caused the formation of a cloud 10 km long heading westward; in this cloud, the presence of[...]
A fire broke out within a warehouse (depot 956) containing phytosanitary products south of Basel. The first responders had been on the scene for 20 min. when fire-fighting teams from neighbouring sites arrived to provide backup. The 80-m high flames[...]
At a pesticide manufacturing plant set up in 1969, a release of about 40 tonnes of methyl isocyanate (MIC) and other toxic gases continued for 2 hours during the night of 2nd to 3rd December, subsequent to a runaway reaction[...]
A chemical plant that had stopped its production for the weekend released a toxic cloud containing 2,3,7,8-tetrachlorodibenzodioxin into the atmosphere : 6½ hours earlier, at the end of the shift, the production cycle of 1,2,4,5-trichlorophenol had been stopped while only[...]
