Nitric acid
SIAL/695041 - ACS reagent, ≥90.0%
CAS Number: 7697-37-2
Empirical Formula (Hill Notation): HNO3
Molecular Weight: 63.01
EC Number: 231-714-2
MDL Number: MFCD00011349
Linear Formula: HNO3
Product Type: Chemical
| anion traces | chloride (Cl-): ≤0.7 ppm |
| dissolved oxides: ≤0.1% (as N2O3) | |
| sulfate (SO42-): ≤5 ppm | |
| assay | ≥90.0% |
| bp | 120.5 °C (lit.) |
| cation traces | As: ≤0.3 ppm |
| Fe: ≤2 ppm | |
| heavy metals (as Pb): ≤5 ppm | |
| color | colorless to yellow |
| density | 1.48 g/mL at 20 °C (lit.) |
| description | dilution test passes test |
| form | liquid |
| grade | ACS reagent |
| ign. residue | ≤0.002% |
| InChI | 1S/HNO3/c2-1(3)4/h(H,2,3, |
| InChI key | GRYLNZFGIOXLOG-UHFFFAOYSA |
| Quality Level | 200 ![]() |
| SMILES string | O[N+]([O-])=O |
| vapor density | 1.3 (vs air) |
| vapor pressure | 6.6 mmHg ( 20 °C) |
| 8 mmHg ( 20 °C) |
| Application: | Nitric acid is used: • As an oxidizing agent with sulfuric acid to graft the carboxylic acid over CNT (carbon nanotubes) to produce CNT-COOH. • In the combustion method to adjust the pH of the solution to 7. It is one of the steps in the preparation of mixed magnetite–hematite nanoparticles. • As a nitrating agent with sulfuric acid in the synthesis of 8-nitro-7-hydroxy-4-methy |
| General description: | Nitric acid is generally used as a primary reagent for the nitration and oxidation of organic molecules. It is also used as a strong oxidizing agent in organic synthesis to perform oxidative transformations. In addition, nitric acid is also used in the manufacturing of intermediate for polyurethanes and polyamides production. |
| Packaging: | 25 mL in glass bottle |
| Packaging: | 500 mL in PVC-coated bottle |
| Symbol | ![]() ![]() GHS03,GHS05,GHS06 |
| Signal word | Danger |
| Hazard statements | H272 - H290 - H314 - H331 |
| Precautionary statements | P210 - P220 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338 |
| Hazard Codes | O,C |
| Risk Statements | 8-35 |
| Safety Statements | 36/37/39-45-63 |
| RIDADR | UN 2031A 5.1(8) / PGI |
| WGK Germany | WGK 2 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Supplemental Hazard Statements | EUH071 |
| Purity | ≥90.0% |
| bp | 120.5 °C (lit.) |
| Density | 1.48 g/mL at 20 °C (lit.) |
| UNSPSC | 12352209 |




