Formic anhydride can be isolated by low-temperature, low-pressure distillation, but decomposes on heating above room temperature. It decomposes into formic acid and carbon monoxide. The decomposition of formic anhydride may be catalyzed by formic acid. Formic anhydride can be detected in the gas-phase reaction of ozone with ethylene. The molecule is planar in the gas phase. Formic anhydride Formic anhydride, also called methanoic anhydride, is an organic compound with the chemical formula and a structural formula of (H(C=O)−)O. It can be viewed as the anhydride of formic acid (HCOOH). Formic anhydride can be obtained by reaction of formyl fluoride with sodium formate
Picric acid control is required. Another route of picric acid synthesis is direct nitration of 2,4-Dinitrophenol with nitric acid. By far, the largest use has been in munitions and explosives. Explosive D, also known as Dunnite, is the ammonium salt of picric acid—more powerful but less stable than the more common explosive TNT (which is produced in a similar process to picric acid but with toluene as the feedstock). Picramide, formed by aminating picric acid (typically beginning with Dunnite), can be further aminated to produce the highly stable explosive TATB. It has found some use in organic chemistry for the preparation of