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2,7-DINITROFLUORENONE CAS: 31551-45-8

2,7-DINITROFLUORENONE Synthesis: With fluorene as raw material, through oxidation and nitration of the prepared 2,7- two nitro fluorenone, and the nitrification reaction conditions were optimized. The best synthesis conditions: water as solvent, concentration of nitric acid and the concentration...

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2,7-DINITROFLUORENONE


Synthesis:

With fluorene as raw material, through oxidation and nitration of the prepared 2,7- two nitro fluorenone, and the nitrification reaction conditions were optimized. The best synthesis conditions: water as solvent, concentration of nitric acid and the concentration of 65% to 96% sulfuric acid mixed acid as nitrating agent, adding 2 batches of mixed acid, adding first times the total amount of mixed acid 1/4, refluxing for 1 h after adding mixed acid to remaining, refluxing for 6 h. Among them, n (Wu Tong) /n (HNO3) /n (H2SO4) =1: 10: 13, m (Wu Tong) /m (H2O) =1: 1.1, the yield of 2,7- two nitroWu Tong is 90%, mass fraction 98%. The product structure is confirmed by infrared and nuclear magnetic resonance spectroscopy.


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Package

The package of all our chemical products reaching up to the industry standard, we usually use kraft drums or woven bags for our powder state products.

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