Propylpicrate is also given the names of propyl-[2,4,6-trinitro-phenyl]-ether and picricacidpropyl ether. This substance is a colorless crystalline material that is soluble in a large number of organic solvents. The preparation is nothing special and the explosive is about 68% as powerful as TNT.
Prepare a warm solution of picryl chloride dissolved in n-propyl alcohol in a small beaker. Add this solution to an ice-cold solution of potassium hydroxide in n-propyl alcohol in another beaker. The orange precipitate that should have formed is hydrolyzed with dilute hydrochloric acid to form a yellow solid. The crude propylpicrate is then dissolved in benzene and treated with decolorizing carbon. Final precipitation is then performed using petroleum ether.
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