article_snippet.sent: The spray itself contains p-benzoquinones - compounds known for their irritant properties.
article_snippet.sent: As the chemicals pass through a valve into the reaction chamber, the chemicals mix with enzymes and explosively liberate oxygen gas, water vapor and heat, propelling a hot, noxious spray down the nozzle and out the exit pore.
highlights_snippet.sent: As chemicals pass into the abdomen they mix with enzymes and explode .
  
highlights_snippet.sent: Each explosion causes the foul-smelling liquid to be forced from Each explosion rear .
  