|nitrosyl perchlorate||molecular mass
This rather unstable compound should be kept away from moisture, heat, and other organic liquids with with it will ignite or decompose. This substance has the appearance of white crystals that pull moisture from the air. It will decompose on heating and will react with water forming harmful nitrogen oxide, NOx, compounds. This substance was first prepared in 1909 by the scientists K.A. Hoffman and A. vonZedtwitz.
|nitrogen dioxide||Erlenmeyer flask|
|perchloric acid||vacuum desiccator|
Nitrosyl perchlorate can be prepared by passing a mixture of nitric oxide gas and nitrogen dioxide gas into 72% perchloric acid in an Erlenmeyer flask. The use of a bubbler can increase the amount of gas that reacts with the acid. Evaporate the resulting mixture until the temperature rises to 140 °C and dense white fumes are evolved, then cool. Over times crystals will precipitate, filter to collect them. The product can be dehydrated in a vacuum desiccator over phosphorus pentoxide in the desiccator.
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