Potassium cyanide (from Shan Ye) Chemical molecular formula of potassium cyanide KCN molar mass 65.12g/mol CASNo. [151-50-8] einecsno 205-792-3 density 1.52 g/cm3 solubility (water) 7 1. 100 ml (25 c c) boiling point 634°C thermodynamic data standard enthalpy of formation Δ fhs131.5 kj/mol standard molar entropy s solid127.8 j.k–1.mol–/. Harmful to the environment (n)R- phrase R26/27/28, r32r 50/53s- phrase S 1/2, S7, S28, S29S45, S60, S6 1pel (USA: OSHA) 5mg/m3 (TWA) (. TS8750000 Unless otherwise specified, all data are in accordance with the international system of units and standard conditions. Potassium cyanide (molecular formula: KCN) is the potassium salt of hydrogen cyanide. It is a colorless, almond-flavored, sugar-like water-soluble solid. Although it is very toxic, it is one of the few substances that can form soluble compounds with elemental gold, so it is used for gold plating and polishing of jewelry. Sometimes it is also used for gold mining by chemical extraction (although sodium cyanide is more commonly used). Until the 1970s, it was sometimes used as rat poison. Directory 1 Physiological Reaction 1. 1 Detoxification 1.2 Stories about Glucose 2 and Potassium Cyanide 2. 1 Suicide 3 Potassium Cyanide in Comics 4 See 5 External Links [Edit] Physiological Reaction Like all cyanides, potassium cyanide is physiologically effective and highly toxic. Prevent the formation of cell electron transfer chain by permanently combining with iron atom on heme in cytochrome. The result is to stop breathing. Potassium cyanide has the same effect on the body as sodium cyanide. Once you ingest 1 00–200mg of potassium cyanide, you will lose consciousness within1minute or even 10 second, depending on the strength of human immunity and the amount of food left in your stomach. In the next 45 minutes or so, the poisoned person will fall into a coma or deep sleep, and if he is not treated effectively within two hours, he will die. In this process, there will be symptoms of convulsions. The cause of death is mostly cardiac arrest. [Editor] Detoxification International Chemical Safety Plan (Chemical Safety /CEC Evaluation Detoxification Series). This measuring table lists the following antidotes and their functions: oxygen, sodium thiosulfate, isoamyl nitrite, sodium nitrite, 4- dimethylhydroxy cobalt, cobalt compound (ethylenediamine tetra-cobalt acetate) and several other commonly recommended methods [1], such as Scheme A and Scheme B (ferrous sulfate and citric acid solution, sodium carbonate solution) and amyl nitrite. The British Health and Safety Agency recommends that methods A and B be banned. Because of their limited shelf life, they may cause iron poisoning, and their usage is limited (only when effective cyanide is swallowed, the poisoning route is mainly skin contact and intake). Health and safety problems can also be attributed to the abuse of isoamyl nitrite due to inventory/supply problems. Lack of evidence has significant benefits, but the use of ethylenediamine tetra-cobalt acetate is not recommended. [2]. [Editor] Glucose [Editor] Stories related to potassium cyanide Potassium cyanide (or other kinds of cyanide) often appears in stories. It is a "popular" weapon in crime novels. Potassium cyanide is also an important prop in the novel and movie The Battle of the Royal. The character "Duan Liyang Sakazaki" used potassium cyanide as a weapon and added it to another person's spaghetti. "You Xiang Nakagawa" accidentally touched this plate of poisonous food and publicized the scene of the infamous lighthouse. Potassium cyanide is also a main raw material of "suspended animation pill" (metal gear 3 Snake Swallow Elephant). It is an indispensable prop for naked snakes in an emergency. It can put the naked snake into suspended animation until he takes the antidote. If you can't take the antidote for too long, you will really die. [Editor] Suicide Potassium cyanide is sometimes associated with suicide. It was once used on soldiers to free them from the cruel torture of the enemy without revealing military secrets. Hermann G?ring, Adolf Hitler and heinrich himmler in Nazi Germany are all famous examples of suicide by using potassium cyanide capsules or pills (Hitler used a pistol at the same time).

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