Aromatic organic compound

Aromatic Organic compounds which contain a benzene ring, or a ring with similar chemical characteristics. 

Short-wavelength UV radiation (A = 254 nm) is employed for excitation. This allows aromatic organic compounds, in particular, to be detected by fluorescence quenching. Uranylacetate may also be excited at A = 366 nm. 

Sweetness is a quality that defies definition, but whose complexity can be appreciated merely by examining the molecular structures of those compounds that elicit the sensation. They come in all molecular shapes and sizes, and they belong to such seemingly unrelated classes of compounds as aliphatic and aromatic organic compounds, amino acids, peptides and proteins, carbohydrates, complex glycosides, and even certain inorganic salts. 

Ferrocene is a very stable compound that melts at 173 °C and can be sublimed without disruption of the metal complex. Many reactions exhibited by ferrocene are essentially those of an aromatic organic compound. For example, sulfonation of ferrocene can be achieved as follows ... 

Marion, C.V., Malaney, G.W. (1964) Ability of activated sludge microorganisms to oxidize aromatic organic compounds. In Proc. Ind. Waste Conf, Eng. Bull., Purdue Univ., Eng. Ext. Ser., pp. 297-308. 

Brodie, B.B. et al. 1971. Possible mechanism of liver necrosis caused by aromatic organic compounds. Proc. Natl. Acad. Sci. USA 68 160. 

Another approach is based on n-n stacking, which utilizes the moderately strong interactions between delocalized n-electrons of nanocarbons and those in aromatic organic compounds, such as derivatives of pyrene [54,55], porphyrins [56,57], phthalo-cyanines [58] or combinations thereof [59], as well as peptides [60], DNA [61], benzyl alcohol [62] or triphenylphosphine [63]. These molecules are often modified with long... 

C Purge and Trap GC Method I (Volatile Aromatic Organic Compounds)... 

Chloracne a skin desease resembling childhood acne but caused by exposure to chlorinated aromatic organic compounds. 

Not all sulfur trioxide is converted to sulfuric acid. Although the normal liquid range of SO3 is narrow (17-45°C), it is produced as the liquid for use in the sulfonation of some aromatic organic compounds. The vapor in an airstream is used to produce alkyl sulfonates for use as detergents. 

A study was made by Freeman and co-workers (93) of the effect of deuterium on the luminescence decay times of solvated rare earth chlorides. Hutchison and Mangum (94) and Robinson (95) had previously shown that there is a substantial increase in the mean triplet-state lifetimes of aromatic organic compounds when the hydrogen is replaced by deuterium. Robinson... 

PHENOL. 1. A class of aromatic organic compounds in which one or more hydroxy groups is attached directly to the benzene nng. Examples are phenol itself (benzophenol), the cresols, xylenols, resorcinol, naphthols. Although technically alcohols, their properties are quite distinctive. 

Pyridine An aromatic organic compound with a benzene- kt ring structure and a composition of C5H5N. A nitrogen atom substitutes for one of the carbons in the benzene ring. 

Fishtine Constants, Kp, for Hydrogen-Bonded Aromatic Organic Compounds.3... 

Although cotton textiles and wood burn in a similar manner, the cotton fibers catch fire and bum more readily than wood, once the ignition temperature is reached, because the fibers are sufficiently exposed to the air to make rapid combustion possible. However, this is somewhat offset by the presence in woods of lignin and other aromatic organic compounds which, under the influence of heat, can give rise to highly flammable gases. 

Synthetic dyes are mainly aromatic organic compounds, and they can be classified as cationic (basic dyes), anionic (direct, acid, and reactive dyes), or nonionic (disperse dyes) type [134]. Synthetic dyes are mainly used in the textile industries, but they have many other applications such as in printing, leather, papermaking, drug, and food industries [85]. Total world colorant production is estimated to be... 

Removal of VOC contaminants from water was discussed in Ref. [107]. This particular process used sunflower oil to absorb the VOC compounds transferred from water across a gas-filled microporous membrane. However, to prevent any possibility of liquid breakthrough, a plasma-polymerized di-siloxane coating was applied on the oil side of the membrane. Report [108] presents results from a pilot trial where organic pollutants such as chlorinated organic compounds and aromatic organic compounds were removed from plant wastewaters. 

Aluminium triphenyl is the sole aluminium aromatic organic compound. Like the corresponding alkyls, it forms an etherate, but its decom K>sition by air is not so rapid. Mercury diphenyl and aluminium in a nitrogen atmosphere at 140 C. produce the compound, with much evoiution of heat, in a few seconds. Iodine decomposes it, with formation of aluminium iodide and iodobenzene. 

Shown here are a few of the many aromatic organic compounds that have practical uses. The common names of these compounds are used more frequently than their formal names. 

Brominated and chlorinated aromatic organic compounds Di- (2-ethylhexyl)phthalate Diphenyl... 

These detailed studies of the interactions and structure of mixtures of ionic liquids with aromatic organic compounds have not been yet extended to other families of molecular solutes. In the case of mixtures of ionic liquids with water or acetonitrile, although different experimental data were published with the aim of studying the limit of the low concentration of ionic liquid [48, 49], or the effect on the solubility of a third molecular species [50], no complete picture of the structure of the ionic liquid as a function of concentration has been established (Fig. 12). 

Use Electroplating copper on iron, intermediate (introduction of the cyanide group in place of the amino radical in aromatic organic compounds). 

Use Nitration of aromatic organic compounds, felt manufacture, mercury fulminate manufacturing. 

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