Nitric acidHNO₃

HNO3 • 63.010 g·mol⁻¹

acidcovalentliquidCAS 7697-37-2PubChem 944 →
HNO₃HNO363.0100 g·mol⁻¹
Molar mass63.010 g·mol⁻¹calc 63.012 • Atomic weights: CIAAW 2021 (conventional atomic weights)
FormulaHNO₃HNO3
Classacid • covalentliquid
Composition — HNO₃
ElementCountMass (g/mol)Mass %
H11.0081.60%
N114.00722.23%
O347.99776.17%

Physical properties

State at STP
liquid
Density
1.51 g·cm⁻³ (liquid (100%) at 20 °C, 1 atm)
Melting point
231.15 K (1 atm)
Boiling point
356 K (1 atm)

Structure & bonding

Trigonal planar nitrate with one OH. Strong acid and oxidizing agent.

Occurrence & preparation

Ostwald process: oxidation of ammonia.

Uses

  • Fertilizer
  • Nitration

Safety

Corrosive and oxidizing — severe burns.

Consult current SDS. — consult current SDS before handling.

Constituent elements

Related reactions

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