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a-, an-: Pronunciation: /ə/, /a/, /ən/, /an/. Origin: Ancient Greek: ἀ-, ἀν-(a, an-). Meaning: a prefix used to make words with a sense opposite to that of the root word; in this case, meaning "without" or "-less". This is usually used to describe organisms without a certain characteristic, as well as organisms in which that ...
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.
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.
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 ...
Removal of cyanide from cassava in Nigeria. Cyanides are produced by certain bacteria, fungi, and algae.It is an antifeedant in a number of plants. Cyanides are found in substantial amounts in certain seeds and fruit stones, e.g., those of bitter almonds, apricots, apples, and peaches. [5]
The medical applications of butyl cyanoacrylate include its use as an adhesive for lacerations of the skin, [5] and in the treatment of bleeding from vascular structures. . Butyl cyanoacrylate has been used to treat arteriovenous malformations [6] by application of the glue into the abnormality through angiog
Cyanoacetylene is an organic compound with the formula C 3 HN or H−C≡C−C≡N.It is the simplest cyanopolyyne.Cyanoacetylene has been detected by spectroscopic methods in interstellar clouds, [2] in the coma of comet Hale–Bopp and in the atmosphere of Saturn's moon Titan, [3] where it sometimes forms expansive fog-like clouds.
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 ...