The use of 2-Nitrofluorene

2-Nitrofluorene is chrism crumb with its melting point 155 ° C.It is baffling in water.It is abiding but adverse with able acerbic agents. Its abstention is not beneath than 99.0% (LC). It's the brand of GR.The blueprint The is to 25G. Cymbalta chicken aggravate crystal. Acrid in water, acrid in alcohol, ether, benzene, carbon disulfide and added amoebic solvents. 2 - nitrofluorene amalgam adjustment was aboriginal proposed in 1901 by the German Diels, the adjustment in arctic acerb acerbic as the bread-and-butter and nitric acerbic as nitrating abettor fluorene nitrification into 2 - nitrofluorene afterwards Kuhn this adjustment is bigger , the accumulation of the Diels-Kuhn method. About 80% crop of the method, but this adjustment consumes ample bulk of agent, the aqueous acerb acerbic recycling almost cumbersome. 1936, by Lydia et al attempts to acerb anhydride, petroleum ether as solvent, the the fluorenyl nitrated with nitric acerbic into the 2 - Nitrofluorene. Removing a hydroxyl atom of nitric acid, and the blow of the group. Nitro and added accumulation (mainly a hydrocarbon group) is affiliated to the admixture accepted as the nitro compound. The nitro-compounds (especially of ambrosial nitro compounds), which is baneful atom introducing assorted nitro not alone added toxicity, and the blaze attrition is aswell enhanced, and mostly become an atomic substance.

2-Nitrofluorene arrangement for pharmaceuticals, dyes; constructed pesticides, herbicides; arrangement shock plexiglass and fluorenyl aldehyde resin; acclimated as a wetting agent, detergent, aqueous beam agents, disinfectants, and so on. Raw abstracts acclimated for amoebic synthesis. Made trinitrofluorenone for xerography; amalgam of aryl cellophane nylon; the instead of anthraquinone amalgam indanthrene dye; anticonvulsants acclimated in the accomplish of sedatives, analgesics, antihypertensive drugs; amalgam pesticides, herbicides; appulse Perspex and fluorenyl formaldehyde adhesive was prepared; may aswell be acclimated as wetting agents, detergents, aqueous beam agents, disinfectants, etc.. High temperature tar the fluorene absolute about 1.0-2.0%. Precise fractionation cut 290-310 ° C from the ablution oil atom of the fluorene atom segment, agnate to 115 abstract plates of the beverage column, a abatement arrangement of 15:1, the cut of 292-302 ° C attenuated fractions. By cooling, crystallization, centrifugation, to access a awkward fluorenyl, and recrystallized from benzene or xylene and again 1:25, again get automated fluorenyl. Automated fluorene was attenuated in benzene, application 40% sulfuric acerbic wash, and again by the abatement and baptize washing, desolventizing Fluorene re-distillation, the alcohol with gasoline and booze and recrystallized to a abstention of 95% authentic fluorene.

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