dinitrogen

2

Distillation of an alkyl nitrite. 

Nitrites are not the best for health, especially volatile organic nitrites. Amyl nitrite and other alkyl nitrites are used in medicine for the treatment of heart diseases. They are potent vasodilators; they expand blood vessels, resulting in lowering of the blood pressure under seconds.

The distillate contains a lower deep blue layer and an upper yellowish thing. The yellow oil is the nitrite and the blue thing at the bottom is dinitrogen trioxide (N2O3). It was formed from the minor decomposition of the nitrite. N2O3 forms upon mixing equal parts of nitric oxide and nitrogen dioxide and cooling the mixture. 

Preparing a nitrating solution from 100% nitric acid and phosphorous pentoxide.

Just a few short notes: the 98-100% nitric acid is a quite strong oxidizer. If I would spill it on my gloves it would ignite it in no time. Same would happen if I would spill it on my labcoat.

From the reaction of pure nitric acid and phosphorous pentoxide, nitrogen pentoxide is generated what is also known as the anhydrous form of nitric acid: N2O5 + H2O = 2 HNO3.

The dinitrogen pentoxide is a highly reactive white powder, melting at 41 °C. When it contacts with water, even with the humidity of the air, it produces nitric acid what is quite corrosive (those fumes what are coming out from the beaker). However, it is a great reagent if you would like to prepare a nitrate ester of any compound what you can found on the shelf.

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Preparing a nitrating solution from 100% nitric acid and phosphorous pentoxide. 

Just a few short notes: the 98-100% nitric acid (first pics) is a quite strong oxidizer. If I would spill it on my gloves it would ignite it in no time. Same would happen if I would spill it on my labcoat. 

On the second pics the prepared nitrating mixture is seen. It is a bit like honey, especially when it’s cold. The only difference that it releases toxic fumes (as seen) and if I would like to taste it it would cause very-very serious burns

From the reaction of pure nitric acid and phosphorous pentoxide, nitrogen pentoxide is generated what is also known as the anhydrous form of nitric acid: N2O5 + H2O = 2 HNO3.

The dinitrogen pentoxide is a highly reactive white powder, melting at 41 °C. When it contacts with water, even with the humidity of the air, it produces nitric acid what is quite corrosive. However, it is a great reagent if you would like to prepare a nitrate ester of any compound what you found on the schelf.