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Mix Of Incompatible Products

Mix of incompatible products

  • Flash
The accidents presented in this flash involve chemical reactions between incompatible products inadvertently placed into contact with one another. Encountered in all types of activities, such accidents are frequent and occur not only during the delivery of chemical products (wrong[...]
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Extended release of mercaptans from a chemical plant

  • Accident report
  • FRANCE
Around 8:00 a.m., an operator smelled mercaptans (strong-smelling gas 110 °C). The operators assigned to performing weekend rounds failed to notice that the mixer was operating although the light on the panel was lit and the shaft at the top of the[...]
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Explosion In A Pharmaceutical Preparation Factory

Explosion in a pharmaceutical preparation factory

  • Accident report
  • FRANCE
At a plant producing substances used in medical imaging, a temperature control defect on a biconical dryer caused product decomposition during the drying cycle. The subsequent pressure surge led, around 10 pm, to the explosion of part of the glass[...]
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Explosion In A Pharmaceutical Factory

Explosion in a pharmaceutical factory

  • Accident report
  • ITALIE
An explosion occurred around noon while conducting hot work (with a disc saw) on a 320-m³ fixed-roof tank at a pharmaceutical plant employing 240 personnel. The tank cover was blasted 20 m away and the subcontractor performing cutting works was[...]
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Methomyl Explosion And Fire At A Pesticide Plant

Methomyl explosion and fire at a pesticide plant

  • Accident report
  • ETATS-UNIS
Inside a pesticides plant with 520 employees, a 17-m³ reservoir used to treat methomyl residues in a methylisobutyl ketone (MTBK) solvent suddenly rose in pressure at 10:20 pm and exploded 15 min later, seriously damaging the production unit, ripping apart[...]
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Accidental Generation Of Chlorine In A Chemical Industry

Accidental generation of chlorine in a chemical industry

  • Accident report
  • ALLEMAGNE
A cloud of chlorine gas was accidentally generated around 10.30 am while transferring hydrochloric acid (HCl) into a tank containing sodium hypochlorite (NaClO or liquid bleach) in a chemical wholesale company. The accident happened during a period of rebuilding of[...]
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Hydrogen Sulphide Emissions In A Biogas Plant

Hydrogen sulphide emissions in a biogas plant

  • Accident report
  • ALLEMAGNE
During the production of biogas by means of an organic waste reclamation process, a release of hydrogen sulphide (H2S) killed 3 employees and a truck driver who had come to unload slaughterhouse waste. The high concentration of H2S in the[...]
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Chlorine Gas Pipeline Explosion

Chlorine gas pipeline explosion

  • Accident report
  • FRANCE
A pipeline used to transport gaseous chlorine (Cl2) exploded between a chemical platform (run by the producer) and an elastomer manufacturing site (user). The pipeline, built in 1961 for the transport of hydrochloric acid (HCl), had been operated since 1986[...]
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Explosion Followed By A Fire In A Chemical Plant

Explosion followed by a fire in a chemical plant

  • Accident report
  • ITALIE
At a chemical plant, a tank containing a mix of toluene-2,6-diisocyanate (TDI) / tars with a high boiling point increased in pressure and exploded around 7:40 pm. The cloud ignited 5 min later; afterwards, the fire was fed by 20[...]
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