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695041

Sigma-Aldrich

Acido nitrico

ACS reagent, ≥90.0%

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About This Item

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

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 (SO42-): ≤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

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Categorie correlate

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.

Avvertenze

Danger

Indicazioni di pericolo

H272 - H290 - H314 - H331

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

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Certificati d'analisi (COA)

Lot/Batch Number
MKCQ1628
MKCQ0982
MKCP7060
MKCP4521
MKCN4214

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