Dinitrogen trioxide, likewise known as nitrous anhydride or nitrogen sesquioxide, is a nitrogen oxide offered in the preparation of other nitrogen compounds.

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Formula and structure: The dinitrogen trioxide chemistry formula is N2O3. The molar fixed is 76.01 g/mol. The molecule is developed by two nitrous cation N3+ and three oxygen anions O2. The 2 nitrogen atoms space bound with a single bond and form the centre of the molecule. To among the nitrogen atoms, one oxygen is bound with a single bond and the various other two oxygen atoms space bound to the second nitrogen atoms through solitary bonds. The geometry the the molecule is planar. Its chemical structure can be composed as below, in the common representations provided for essential molecules.


Occurrence: similar to other oxides that nitrogen, dinitrogen trioxide is discovered in the nature together being part of the biogeochemical bicycle of the nitrogen in the planet. Nitrogen is uncovered in the atmosphere, oceans and rivers and likewise in soils.

Preparation: Dinitrogen trioxide have the right to be ready from the reaction the nitrogen dioxide and also nitrogen oxide. The three varieties are under equilibrium, therefore the dinitrogen trioxide cannot de isolated.

Physical properties: Dinitrogen trioxide is a blue, sharp/unpleasant odour, gas or liquid, depending upon the temperature of manipulation. The thickness of this liquid is 1.447 g/mL, when the gas has actually a density of 1.738 g/mL. That melting allude is -100.7 °C and the boiling suggest is 3.5 °C. It is very soluble in water. Dinitrogen trioxide is also soluble in ether and also other organic solvents.

Chemical properties: Dinitrogen oxide is chemically unstable. In general, this chemistry compounds is discovered as a mixture of nitric oxide and nitrogen oxygen that are created according come the reaction:

NO + NO2 → N2O3

This reaction take away places above the -20 °C, meaning that a room temperature, that is very complicated to obtain a pure and also isolated dinitrogen trioxide and also only at incredibly low temperatures is possible to obtain it.

Uses: Dinitrogen trioxide is provided in chemical laboratories in reaction of identification of terpenes. That is mainly used in the preparation of other nitrogen oxygen and alkali nitrites, all set by including the liquid to the reaction. Dinitrogen trioxide can also be offered as fuel.

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Health results / security hazards: Dinitrogen trioxide is toxic and fatal in call with skin or inhaled. That can likewise cause fires and also under pressure the containers deserve to explode if heated.