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| Nitric acid |
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| IUPAC name |
Nitric acid |
| Other names |
Aqua fortis; Spirit of nitre; Salpetre acid |
| Identifiers |
| CAS number |
[7697-37-2] |
| RTECS number |
QU5775000 |
| SMILES |
O[N+](=O)[O-] |
| Properties |
| Molecular formula |
HNO3 |
| Molar mass |
63.012 g/mol |
| Appearance |
Clear, colorless liquid |
| Density |
1.51 g/cm³, colorless liquid |
| Melting point |
-42 °C, 231 K, -44 °F |
| Boiling point |
83 °C, 356 K, 181 °F (bp of pure acid. 68% solution boils at 120.5°C) |
| Solubility in water |
miscible |
| Viscosity |
? cP at ? °C |
| Dipole moment |
2.17 ± 0.02 D |
| Hazards |
| EU classification |
Oxidant (O)
Corrosive (C) |
| R-phrases |
R8, R35 |
| S-phrases |
(S1/2), S23, S26, S36, S45 |
| Flash point |
not applicable |
| Related compounds |
| Related compounds |
Nitrous acid
Dinitrogen pentoxide |
Except where noted otherwise, data are given for
materials in their standard state
(at 25 °C, 100 kPa) |
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