Hydrogen Cyanide (HCN) is a colorless, highly toxic gas with a faint, bitter almond odor. It is used in various industrial processes, including the production of plastics, synthetic fibers, and pesticides. Due to its toxicity, exposure to hydrogen cyanide can be lethal, affecting the body's ability to use oxygen. In nature, hydrogen cyanide can be found in certain plants, such as bitter almonds and cassava, as well as in smoke from burning materials. Safety measures are crucial when handling this compound, as even small amounts can pose serious health risks, including respiratory failure and death.