The cylinders were likely filled with hydrocyanic acid (HCN), which is a poisonous volatile liquid. 85-90% of poisoning cases end in death. The concentration of HCN of more than 0.4 mg/l causes deadly poisoning. If the concentration of the substance in the air exceeds 11 mg / l, then intoxication is possible even percutaneously. | The cylinders were likely filled with hydrocyanic acid (HCN), which is a poisonous volatile liquid. 85-90% of poisoning cases end in death. The concentration of HCN of more than 0.4 mg/l causes deadly poisoning. If the concentration of the substance in the air exceeds 11 mg / l, then intoxication is possible even percutaneously. |