Nitric acid
CAS 7697-37-2
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Description
Nitric acid (CAS 7697-37-2) is a strong mineral acid also known as aqua fortis, fumic acid, NSC 15203, and NSC 147791. It is classified under inorganic acids and carries no E-code designation, as it is not approved for direct food use in the EU.
In metal processing and mining, nitric acid dissolves base metals and passivates stainless steel surfaces by forming a protective oxide layer. In electronics manufacturing, it etches circuit boards and removes metallic contaminants from silicon wafers through controlled oxidative attack. Agricultural producers use it as a precursor in nitrate fertiliser synthesis.
Nitric acid is supplied in technical, industrial, and reagent grades, with concentrations typically ranging from 52% to 68% fuming grades for specialist applications. It falls under REACH regulation and is subject to strict controls as a dual-use substance under EU Regulation 98/2013. Packaging is available in carboys, IBCs, and bulk tanker delivery.
In metal processing and mining, nitric acid dissolves base metals and passivates stainless steel surfaces by forming a protective oxide layer. In electronics manufacturing, it etches circuit boards and removes metallic contaminants from silicon wafers through controlled oxidative attack. Agricultural producers use it as a precursor in nitrate fertiliser synthesis.
Nitric acid is supplied in technical, industrial, and reagent grades, with concentrations typically ranging from 52% to 68% fuming grades for specialist applications. It falls under REACH regulation and is subject to strict controls as a dual-use substance under EU Regulation 98/2013. Packaging is available in carboys, IBCs, and bulk tanker delivery.
Other Names
NitalFumic acidAqua fortisAzotic acidHydrogen nitrateNitryl hydroxideNitric acid (HONO2)
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