695041

Acido nitrico

ACS reagent, ≥90.0%

• Formula empirica (notazione di Hill): HNO₃
• Numero CAS: 7697-37-2
• Peso molecolare: 63.01
• Numero CE: 231-714-2
• Numero MDL: MFCD00011349
• Codice UNSPSC: 12352209
• eCl@ss: 38060304
• ID PubChem: 329761711
• NACRES: NA.21

Proprietà

• Grado: ACS reagent
• Livello qualitativo: 200
• Densità del vapore: 1.3 (vs air)
• Tensione di vapore: 6.6 mmHg ( 20 °C); 8 mmHg ( 20 °C)
• Descrizione: dilution test passes test
• Saggio: ≥90.0%
• Forma fisica: liquid
• Residuo alla calcinazione: ≤0.002%
• Colore: colorless to yellow
• P. eboll.: 120.5 °C (lit.)
• Densità: 1.48 g/mL at 20 °C (lit.)
• Anioni in tracce: chloride (Cl^-): ≤0.7 ppm; dissolved oxides: ≤0.1% (as N₂O₃); sulfate (SO₄^2-): ≤5 ppm
• Cationi in tracce: As: ≤0.3 ppm; Fe: ≤2 ppm; heavy metals (as Pb): ≤5 ppm
• Stringa SMILE: O[N+]([O-])=O
• InChI: 1S/HNO3/c2-1(3)4/h(H,2,3,4); GRYLNZFGIOXLOG-UHFFFAOYSA-N

Descrizione

Descrizione generale

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.

Applicazioni

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.

Informazioni sulla sicurezza

• Pittogrammi: GHS03,GHS06,GHS05
• Avvertenze: Danger
• Indicazioni di pericolo: H272,H290,H314,H331
• Consigli di prudenza: P210 - P220 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338
• Classi di pericolo: Acute Tox. 3 Inhalation - Eye Dam. 1 - Met. Corr. 1 - Ox. Liq. 3 - Skin Corr. 1A
• Rischi supp: EUH071
• Codice della classe di stoccaggio: 5.1A - Strongly oxidizing hazardous materials
• Classe di pericolosità dell'acqua (WGK): WGK 2
• Punto d’infiammabilità (°F): Not applicable
• Punto d’infiammabilità (°C): Not applicable
• Dispositivi di protezione individuale: Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter