explodes at 154 °C
|m-nitrobenzenediazonium perchlorate||molecular mass
m-nitrobenzenediazonium perchlorate, also called m-nitrodiazobenzeneperchlorate, was first patented back in 1911 by the German scientist E. von Hertz for use in detonators. This compound is sensitive to shock and friction and will explode if heated to 154 °C. Although this compound is not very soluble in water, it will draw moisture out of the air being hygroscopic. This compound has been used as a detonator when mixed with nitromannite or other explosive nitric esters.
|ethyl ether||graduated cylinder|
|hydrochloric acid||stirring rod|
Suspend 0.5 g of m-nitroaniline in 5 mL of water in a wide test tube, then add 0.5 mL of concentrated hydrochloric acid and 2.2 mL of 20% perchloric acid solution. After the nitroaniline has dissolved, 15 mL of water is added and the solution is cooled by immersing the test tube in a beaker filled with ice water. Prepare a solution of 0.25 g of sodium nitrite dissolved in 1 or 2 mL of water, add this solution to the test tube in three or four portions, the mixture being shaken after each addition or stirred with a stirring rod the end of which is covered with a rubber policeman or piece of rubber tubing. After standing in the cold for 5 minutes, the material is filtered to collect it, and the feltlike mass of pale yellow needles is washed with cold water, then with ethyl alcohol, then with ethyl ether. The product should be allowed to dry in several small portions on different pieces of filter paper. You will need a graduated cylinder for measuring liquids.
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