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HCl Vapor Emission

HCl vapor emission

  • Accident report
  • FRANCE
A release of hydrochloric acid vapours occurred during cleaning of a 50-m³ tank that had contained sulphur chloride. The water introduced by site technicians reacted with the sludge at the tank bottom (approx. 30-mm thick), composed for 50% of sulphur[...]
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Explosion of a wagon of acid awaiting treatment

  • Accident report
  • FRANCE
A tank glazed with 85% H2SO4 ruptured leading to a workshop to close down for five days in an explosives factory. Given the waste acid storage autonomy period of four days for production, 3 tank trucks hired in February and[...]
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Ammonia leak in a fertilizer production plant

  • Accident report
  • FRANCE
At around 6.30 pm, 5 t of ammonia (NH3) was released over a 15-minute period from 2 valves at a height of 8/10 m on equipment used to manufacture an ammonium nitrate solution. 4 persons located at 1,100 m to[...]
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Explosion of a compressor on a nitrous gas circuit

  • Accident report
  • FRANCE
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[...]
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Perforation Of An Oil Pipeline

Perforation of an oil pipeline

  • Accident report
  • FRANCE
While conducting earthworks, a loader punctured an oil pipeline (Ø = 400 mm), buried 1.2 m deep and carrying naphtha at a pressure of 8-10 bar. Emanating from a 30 cm² opening, a jet spray 5 to 10 m high[...]
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Vinyl chloride and PVC leak in a chemical plant

  • Accident report
  • FRANCE
The summary of this accident has not yet been translated. In the meantime, please refer to the French summary : Une émission de 3,5 t de CVM a lieu sur un site chimique fabricant du PVC. La chaîne Poly III[...]
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Reaction Runaway And Dioxin Release

Reaction runaway and dioxin release

  • Accident report
  • ITALIE
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[...]
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Release Of Acrolein In RHONE

Release of acrolein in RHONE

  • Accident report
  • FRANCE
20 t of acrolein was released into the Rhone River. The manufacturing unit was undergoing its annual shutdown at the time and the neutralisation ponds (2 x 250 m³) were under repair. For the last four months, the tank cleaning[...]
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Fire In A Powder Factory

Fire in a powder factory

  • Accident report
  • FRANCE
Inside a powder factory, 2 series of explosions occurred at a 75-second interval around 1:15 pm, killing 3 and injuring 81 (60 employees, 20 nearby residents), 2 of whom in critical condition. When the forklift operator for Building 211 (intermediate[...]
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