preparation of fuming nitric acid

Remember:- Fuming nitric acid is concentrated nitric acid that has a deep brown colour due to considerable amount of nitrogen dioxide present in it. When exposed, some of the nitrogen dioxide escapes and hence the name "fuming nitrich..

. Hence the complete apparatus should be made of glass only. Although pure nitric acid is colourless, the acid obtained by this method is slightly yellowish brown. This is due to the formation of reddish brown fumes of nitrogen dioxide gas when the acidh..

Action of heat : When nitric acid or nitrates of metals other than sodium and potassium are heated, reddish brown fumes of nitrogen dioxide are produce..

Pure nitric acid is a colorless fuming liquid with a pungent odor. Impure acid or pure acid on standing develops yellow color due to the presence of dissolved oxides of nitrogen (mainly NO 2 ). It is completely soluble in water and forms a cons..

Nitric acid can be prepared by distilling a mixture of a nitrate salt with concentrated sulphuric acid. As nitric acid is a volatile acid it can be expelled by a stronger but less volatile acid such as concentrate..

Various tests for nitric acid and nitrates are mentioned bel..

Johann Glauber (1604-1668) prepared nitric acid by heating nitre with concentrated sulphuric acid and then condensing the vapour. While Henry Cavendish determined the composition of nitric acid, Lavoisier proved that oxygen is presen..

Johann Glauber (1604-1668) prepared nitric acid by heating nitre with concentrated sulphuric acid and then condensing the vapour. While Henry Cavendish determined the composition of nitric acid, Lavoisier proved that oxygen is present in h..

Nitric acid is a monobasic acid and may be structurally represented as,..

Pure nitric acid is a colourless liquid. But commercial nitric acid may be yellowish brown, due to the presence of dissolved nitrogen dioxid..