History of Aromacity | Heterocyclics | Polycyclics

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History of AromacityThe first known use of the word "aromatic" as a chemical term -- namely, to apply to compounds that contain the phenyl radical -- occurs in an article by August Wilhelm Hofmann in 1855.If this is indeed the earliest introduction of the term, it is curious that Hofmann says nothing about why he introduced an adjective indicating olfactory character to apply to a group of chemical substances, only some of which have notable aromas. It is the case, however, that many of the most odoriferous organic substances known are terpenes, which are not aromatic in the chemical sense. But terpenes and benzenoid substances do have a chemical characteristic in common, namely higher unsaturation indexes than many aliphatic compounds, and...

Synthesised Hydrocarbons |Metal-Organic Frameworks | Polymer

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Synthesised HydrocarbonsAn alternative to hydrides is to use regular hydrocarbon fuels as the hydrogen carrier. Then a small hydrogen reformer would extract the hydrogen as needed by the fuel cell. However, these reformers are slow to react to changes in demand and add a large incremental cost to the vehicle powertrain.Direct methanol fuel cells do not require a reformer, but provide a lower energy density compared to conventional fuel cells, although this could be counter balanced with the much...

Triaryl Phosphate | Phosphorus Flame Retardant

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Triaryl Phosphate (T.A.P.)Phosphorus Flame RetardantTAP ( Triaryl Phosphate ) is a low viscosity synthetic Triaryl phosphate ester, Triaryl Phosphate finds uses in wide variety of application as Flame retardant plasticizerUses of riaryl Phosphate (T.A.P.)Leather cloth (PVC) : Upholstery, Book binding, Seat coversUtility articles: Footwear, Raincoats, Handbags, Fiber glass cellulose acetateExtruded articles : Cables (PVC & rubber), hoses, flexible pipe, coal mining, conveyor beltsCoatings: Nitrocellulose lacquers, phenolic resins, lube oilsTypical propertiesPhysical appearance :Clear LiquidPhosphorus content:wt % 9.0Specific gravity @ 25° C:1.21±0.005Boiling Point (decomposes )°C :415° CFlash Point °C :220°CSolubility (G/100 g Solvent):...
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