Cyanide - Wikipedia
In chemistry, cyanide (from Greek kyanos ' dark blue ') is a chemical compound that contains a C≡N functional group. This group, known as the cyano group, consists of a carbon atom triple-bonded to a nitrogen atom. [1] In inorganic cyanides, the cyanide group is present as the cyanide anion −C≡N. This anion is extremely poisonous.
Cyanide poisoning - Wikipedia
A cherry red skin color that darkens may be present as the result of increased venous hemoglobin oxygen saturation. Despite the similar name, cyanide does not directly cause cyanosis. [11] A fatal dose for humans can be as low as 1.5 mg/kg body weight. [12] Other sources claim a lethal dose is 1–3 mg per kg body weight for vertebrates. [13]
Cyanide Facts | The Cyanide Code
Both HCN gas and liquid are colorless and have the odor of bitter almonds, although not all individuals can detect the odor. In solution, the cyanide ion reacts with water to form HCN. The relationship between pH, hydrogen cyanide, and the cyanide anion …
The blue history of cyanide - ScienceBlogs
2010年2月26日 · In the history of poisons, the story of cyanide is always colored blue. Cyanides are old poisons, with a uniquely long, dark history, probably because they grow so bountifully around us.
The Chemistry of Cyanide Poisoning and Why it Kills - ThoughtCo
2024年7月24日 · Death from cyanide poisoning usually results from respiratory or heart failure. A person exposed to cyanide may have cherry-red skin from high oxygen levels or dark or blue coloring, from Prussian blue (iron-binding to the cyanide ion). Also, skin and body fluids may give off an odor of almonds. How Much Cyanide Is Lethal?
Signs and symptoms of cyanide poisoning include the following: Other: acute lung injury, nausea and vomiting, cherry-red skin color. Survivors may sufer Parkinson’s disease, ataxia, optic atrophy, and other neurologic disorders. Venous oxygen saturation > 90%.
Cyanide Poisoning: Symptoms, Treatment, Complications, and …
2018年9月17日 · Cyanide can refer to any chemical that contains a carbon-nitrogen (CN) bond. Here’s how to identify the symptoms of poisoning, who’s at risk, and more. Healthline
Hydrogen cyanide | Description, Uses, Effects, & Facts - Britannica
2024年10月7日 · hydrogen cyanide, a highly volatile, colourless, and extremely poisonous liquid (boiling point 26° C [79° F], freezing point -14° C [7° F]). A solution of hydrogen cyanide in water is called hydrocyanic acid, or prussic acid. It was discovered in 1782 by a Swedish chemist, Carl Wilhelm Scheele, who prepared it from the pigment Prussian blue.
• Cyanide can be a colorless gas, such as hydrogen cyanide (HCN) or cyanogen chloride (CNCl), or a crystal form such as sodium cyanide (NaCN) or potassium cyanide (KCN). • Cyanide sometimes is described as having a “bitter almond” smell, but it does not always give off
Cyanide | Definition, Uses, & Effects | Britannica
cyanide, any compound containing the monovalent combining group CN. In inorganic cyanides, such as sodium cyanide (NaCN), this group is present as the negatively charged cyanide ion; these compounds, which are regarded as salts of hydrocyanic acid, are highly toxic.