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Nitric acid

CAS Number
7697-37-2
EC Number
231-714-2
Molecular Weight
63.013 g/mol

Description

Nitric acid (CAS 7697-37-2 ), also known as spirit of niter, is a strong inorganic acid and powerful oxidizing agent used across industrial chemistry for acidification and metal processing. Its reactivity with metals and organic substrates makes it a primary feedstock in manufacturing rather than a specialty additive. In agriculture, it serves as a direct input for producing ammonium nitrate. This links bulk acid procurement directly to crop nutrition supply chains. Metal finishing and electronics manufacturers use it to etch, passivate, and clean copper, stainless steel, and semiconductor substrates. Pharmaceutical and fine chemical producers rely on the acid for nitration reactions that introduce nitro groups into active pharmaceutical intermediates. It is essential for complex chemical synthesis. In mining and hydrometallurgy, it dissolves base and precious metals during leaching and refining operations. This versatility makes it a staple in heavy industrial and metallurgical processing facilities. The product is supplied as an aqueous solution, with concentrations of 68% and 98–100% being the most commercially traded grades. Technical grade is standard for most industrial use cases. Higher-purity electronic and reagent grades are available for semiconductor and analytical applications. Bulk liquid delivery in tankers and IBC containers is the norm for industrial buyers. Contact us for supply of Nitric acid Request Quote

Other Names (Synonyms)

spirit of niter | hydrogen nitrate | HONO2 | HNO₃ | fuming nitric acid | engraver's acid | aqua fortis | HNO3

Key Technical Features

  • High Purity Grade standard
  • Consistent Batch Quality
  • Full Regulatory & REACH Support
  • Global Logistics Network enabled

Safety & Handling

Danger
GHS03· OxidizerGHS05· CorrosiveGHS06· ToxicGHS09· EnvironmentGHS08· Health Hazard

Hazard Statements

H272May intensify fire; oxidizer
H314Causes severe skin burns and eye damage
H330Fatal if inhaled
H331Toxic if inhaled
H290May be corrosive to metals
H318Causes serious eye damage
H370Causes damage to organs
H372Causes damage to organs through prolonged or repeated exposure
H402Harmful to aquatic life
H304May be fatal if swallowed and enters airways