695041

Salpetersäure

ACS reagent, ≥90.0%

• Empirische Formel (Hill-System): HNO₃
• CAS-Nummer: 7697-37-2
• Molekulargewicht: 63.01
• EG-Nummer: 231-714-2
• MDL-Nummer: MFCD00011349
• UNSPSC-Code: 12352209
• eCl@ss: 38060304
• PubChem Substanz-ID: 329761711
• NACRES: NA.21

Eigenschaften

• Qualität: ACS reagent
• Qualitätsniveau: 200
• Dampfdichte: 1.3 (vs air)
• Dampfdruck: 6.6 mmHg ( 20 °C); 8 mmHg ( 20 °C)
• Beschreibung: dilution test passes test
• Assay: ≥90.0%
• Form: liquid
• Glührückstand: ≤0.002%
• Farbe: colorless to yellow
• bp: 120.5 °C (lit.)
• Dichte: 1.48 g/mL at 20 °C (lit.)
• Anionenspuren: chloride (Cl^-): ≤0.7 ppm; dissolved oxides: ≤0.1% (as N₂O₃); sulfate (SO₄^2-): ≤5 ppm
• Kationenspuren: As: ≤0.3 ppm; Fe: ≤2 ppm; heavy metals (as Pb): ≤5 ppm
• SMILES String: O[N+]([O-])=O
• InChI: 1S/HNO3/c2-1(3)4/h(H,2,3,4)
• InChIKey: GRYLNZFGIOXLOG-UHFFFAOYSA-N

Beschreibung

Allgemeine Beschreibung

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.

Anwendung

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-methyl coumarin and 6-nitro-7-hydroxy-4-methyl coumarin from 7-hydroxy-4-methyl coumarin.

Sicherheitshinweise

• Piktogramme: GHS03,GHS06,GHS05
• Signalwort: Danger
• H-Sätze: H272,H290,H314,H331
• P-Sätze: P210 - P220 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338
• Gefahreneinstufungen: Acute Tox. 3 Inhalation - Eye Dam. 1 - Met. Corr. 1 - Ox. Liq. 3 - Skin Corr. 1A
• Zusätzliche Gefahrenhinweise: EUH071
• Lagerklassenschlüssel: 5.1A - Strongly oxidizing hazardous materials
• WGK: WGK 2
• Flammpunkt (°F): Not applicable
• Flammpunkt (°C): Not applicable
• Persönliche Schutzausrüstung: Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter