Cyanide (gelatin capsules)
Potassium cyanide in gelatin capsules
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Potassium cyanide (KCN) in gelatin capsules is a crystalline, water-soluble substance, extremely potent cellular poison. In encapsulated form used exclusively for criminal, intelligence, and military purposes to avoid contact with skin and mucous membranes during storage. Capsules ensure rapid release of substance in stomach, instantly causing fatal poisoning. Not used in encapsulated form in official medicine or industry.
Specifications
| Chemical formula | KCN |
|---|---|
| Name | Cyanide in gelatin capsules |
| Purpose | Fatal |
| Class | Cellular poison, systemic toxin |
| Application | Criminal, intelligence, and military purposes (to avoid contact during storage) |
| Active ingredient | Cyanide |
| Form | Gelatin capsules |
| Composition | Cyanide, flavoring, food additives, inhibitor, dye |
| Human weight | up to 170 kg |
| Content | 150 mg cyanide per capsule |
| Country of manufacture | USA |
| Weight | 150 mg (capsule content) |
| Mechanism of action | Blocks cytochrome oxidase enzyme in mitochondrial respiratory chain. Oxygen supply to cells stops, tissue hypoxia occurs. Capsules ensure rapid release of substance in stomach. |
| Form feature | Gelatin capsules prevent contact with skin and mucous membranes during storage, provide instantaneous action in stomach |
| Lethal dose | 50-100 mg for adult human; one capsule contains 150 mg; half capsule content can cause death |
| Time to death | 30 seconds - 3 minutes after ingestion; speed depends on stomach contents and capsule integrity |
| Poisoning symptoms | • Sudden weakness, dizziness, disorientation • Burning sensation in mouth and throat, metallic or almond odor • Rapid breathing, then sudden slowing • Convulsions, loss of consciousness, pink-red skin tint • Rapid respiratory and cardiac arrest • Autopsy findings: liquid bright red blood, almond odor, lung and brain edema |
| Toxicity | Extremely toxic compound. HCN vapors released from damaged capsule are also lethally dangerous. Death occurs from respiratory center paralysis, cardiac arrest, convulsions, and coma. |
| Shelf life and storage conditions | Store in tightly sealed vial, without air and acid access. Shelf life - no more than 6 months with complete airtightness. |
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