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Picric acid

Key Points

Fire

  • Explosive
  • Vigorous reactions occur with oxidising and reducing materials
  • Combustion of picric acid produces toxic oxides of carbon and nitrogen when heated to decomposition. Shock-sensitive compounds are formed with metals, particularly copper, lead, mercury and zinc
  • In the event of a fire involving picric acid, use coarse water spray and liquid tight chemical protective clothing with breathing apparatus

Health

  • Exposure by any route may be dangerous
  • CHIP: Explosive and toxic
  • Inhalation may cause cough, sore throat and respiratory irritation
  • Ingestion may cause mucosal ulceration and severe gastroenteritis with nausea, vomiting, diarrhoea and abdominal pain
  • Dermal exposure may cause irritation and yellow staining.
  • Ocular exposure may cause pain, blepharospasm, lacrimation, conjunctivitis, palpebral oedema and photophobia
  • Systemic effects include dizziness, headache, weakness, bradycardia, supraventricular tachycardia, pyrexia, hyperthermia, coma convulsions, pulmonary oedema and death.

Environment

  • Avoid release into the environment
  • Inform Environment Agency of substantial incidents

 

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