Physical & Chemical

🔻not very stable

🔻Nitric acid is a strong monobasic acid

🔻Nitric acid usually does not behave as an acid, with metals to form the corresponding salt and liberate hydrogen.

🔹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 NO2).

🔹It is completely soluble in water and forms a constant boiling mixture (120.5°C) with water, containing 68% (by mass) of nitric acid.

🔹Pure acid has a density of 1.54 g/mL. The constant boiling mixture has a density of 1.4 g/mL at 20°C.

🔹Anhydrous nitric acid boils at 355.6 K (83.6°C) and freezes to a white solid at 231.4 K (- 41.7°C).

It has a corrosive action on the skin and causes yellow blisters.

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