Trade name: Concentrated nitric acid min. 98,0%
PKWiU classification: 24.15.10-50.10
Nitric acid is a highly caustic, colourless, non-flammable liquid with pungent, characteristic odour. After a longer period of storage, it turns yellow. It dissolves rapidly in water, giving off heat. It is an unstable compound, decomposing from heat and light, giving off nitrogen oxide and dioxide. When diluted it reacts with many metals giving off flammable and explosive hydrogen. It is a strong oxidising agent and may cause the ignition of flammable substances. It is an active chemical compound and most of its reactions are rapid or even explosive. Vapours of concentrated nitric acid cause severe inflammation of the respiratory tract. In case of contact with skin, it causes necrosis and deep changes due to skin charring.
Concentrated nitric acid (V) is used in the production of explosives and organic dyes.
Concentrated nitric acid (V) should be stored in air-tight aluminium or other tanks which are resistant to it. Concentrated nitric acid (V) should not be exposed to sun light, as it slowly decomposes in a temperature of between 250˚C and 350˚C, which results in decreased HNO3 concentration with increased nitrogen oxides content in the product. Ventilation systems should be used in closed storage areas.