ABSTRACT
Hydrocyanic acid (HCN) was first isolated by the Swedish chemist Karl Scheele in 1782. He also became the first victim of cyanide gas when he accidentally broke a vial in the laboratory and died from vapor inhalation [1]. Many instances of murder, suicide, and accident involving cyanide have occurred through the years [2]. Cyanide is now considered a potential weapon for mass destruction in the United States for use in terrorist attacks [3,4].
