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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. Soluble salts such as sodium cyanide (NaCN) and potassium cyanide (KCN) are highly toxic. [2]
Chloroxybacteria Margulis & Schwartz 1982 "Cyanobacteria" Woese et al. 1985 [6] "Cyanophycota" Parker, Schanen & Renner 1969 "Cyanophyta" Steinecke 1931 "Diploschizophyta" Dillon 1963
Cyan (/ ˈ s aɪ. ə n,-æ n /) [2] [3] [4] is the color between blue and green on the visible spectrum of light. [5] [6] It is evoked by light with a predominant wavelength between 500 and 520 nm, between the wavelengths of green and blue.
Chemical structure of ethyl cyanoacrylate, the precursor to many commercial adhesives. The most common monomer is ethyl cyanoacrylate.Several related esters are known. To facilitate easy handling, a cyanoacrylate monomer is frequently formulated with an ingredient such as fumed silica to make it more viscous or gel-like.
The two cyano groups are bonded together at their carbon atoms: N≡C‒C≡N, though other isomers have been detected. [6] The name is also used for the CN radical, [7] and hence is used for compounds such as cyanogen bromide (NCBr) [8] (but see also Cyano radical). When burned at increased pressure with oxygen, it is possible to get a blue ...
The cyanotype was discovered, [2] and named thus, by Sir John Herschel who in 1842 published his investigation of light on iron compounds, [3] expecting that photochemical reactions would reveal, in form visible to the human eye, the infrared extreme of the electromagnetic spectrum detected by his father William Herschel and the ultra-violet or 'actinic' rays that had been discovered in 1801 ...
Cyanocarbons are organic compounds bearing enough cyano functional groups to significantly alter their chemical properties. [1] Illustrative cyanocarbons: Tetracyanoethylene, which reduces to a stable anion [C 2 (CN) 4] −, unlike most derivatives of ethylene. Pentacyanocyclopentadiene, which forms an air-stable anion, in contrast to ...
The cyano in the term cyanobacteria refers to its colour, not to its relation to cyanides, though cyanobacteria can catabolize hydrogen cyanide during nitrogen fixation. [1] Exposure to cyanobacteria can result in gastro-intestinal and hayfever symptoms or pruritic skin rashes. [2]