benzene was first synthesized in the early 19th century when coal gas was studied as a lighting gas. g. t. accum produced many products from 1803 to…
benzene is an excellent solvent with aromatic properties and is widely used in industry. however, it is toxic, so when used improperly or carelessly, …
substitution reaction main article: substitution reaction, electrophilic aromatic substitution reaction the hydrogen atoms on the benzene ring can b…
methods for separating toluene, aniline, phenol and benzoic acid first pass the mixture into nahco3 solution to separate benzoic acid. then pass the n…
phenol is an important benzene intermediate, also known as carbolic acid. it is a white crystal with a low melting point (40.91℃). it turns red when p…
extraction of phenol from wastewater method 1: 1. wastewater + benzene = benzene, phenol + wastewater — filtration — 2. phenol, benzene + na oh = benz…
nitrile spices are new spices developed in the past 20 years. in the perfume industry, the aroma and performance of nitrile compounds are better than …
illicium anise is an evergreen tree plant of the magnoliaceae family and can be used as medicine. in addition to being used as a condiment, star anise…
preparation of epoxy soybean oil acrylate preparation of epoxy soybean oil acrylate photosensitive coating by half-ester modification method epoxy soy…
hydroquinone is also known as hydroquinone (english: hydroquinone), quinone, gallinol, 1,4-dihydroxybenzene, 1,4-benzenediol, in 1820, the world first…
anisaldehyde is also known as p-methoxybenzaldehyde, 4-methoxybenzaldehyde, p- anisaldehyde and anisaldehyde are colorless to light yellow transparent…
anti-scorch agent ctp, whose scientific name is n-cyclohexylthiophthalideimide, was developed by monsanto company in the united states in the late 196…