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695041

Sigma-Aldrich

Ácido nítrico

Nitric acid

ACS reagent, ≥90.0%

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About This Item

Fórmula empírica (notación de Hill):
HNO3
Número de CAS:
7697-37-2
Peso molecular:
63.01
Número CE:
231-714-2
Número MDL:
MFCD00011349
Código UNSPSC:
12352209
eCl@ss:
38060304
ID de la sustancia en PubChem:
329761711
NACRES:
NA.21
En este momento no podemos mostrarle ni los precios ni la disponibilidad

grado

ACS reagent

Nivel de calidad

200

densidad de vapor

1.3 (vs air)

presión de vapor

6.6 mmHg ( 20 °C)
8 mmHg ( 20 °C)

descripción

dilution test passes test

Ensayo

≥90.0%

Formulario

liquid

residuo de ign.

≤0.002%

color

colorless to yellow

bp

120.5 °C (lit.)

densidad

1.48 g/mL at 20 °C (lit.)

trazas de anión

chloride (Cl-): ≤0.7 ppm
dissolved oxides: ≤0.1% (as N2O3)
sulfate (SO42-): ≤5 ppm

trazas de catión

As: ≤0.3 ppm
Fe: ≤2 ppm
heavy metals (as Pb): ≤5 ppm

cadena SMILES

O[N+]([O-])=O

InChI

1S/HNO3/c2-1(3)4/h(H,2,3,4)

Clave InChI

GRYLNZFGIOXLOG-UHFFFAOYSA-N

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Descripción general

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.

Aplicación

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.

Palabra de señalización

Danger

Frases de peligro

H272,H290,H314,H331

Clasificaciones de peligro

Acute Tox. 3 Inhalation - Eye Dam. 1 - Met. Corr. 1 - Ox. Liq. 3 - Skin Corr. 1A

Riesgos supl.

EUH071

Código de clase de almacenamiento

5.1A - Strongly oxidizing hazardous materials

Clase de riesgo para el agua (WGK)

WGK 2

Punto de inflamabilidad (°F)

Not applicable

Punto de inflamabilidad (°C)

Not applicable

Equipo de protección personal

Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter

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Certificados de análisis (COA)

Lot/Batch Number
MKCX0737
MKCT9792
MKCT3350
MKCS5377
MKCS7289

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Journal of inorganic biochemistry, 147, 227-234 (2015-05-11)
Uncontrolled reactions in biological media are a main obstacle for clinical translation of V-based anti-diabetic or anti-cancer pro-drugs. We investigated the use of controlled-release pharmaceutical formulations to ameliorate this issue with a series of V(V) and (IV) complexes of anionic
Alyson M Baergen et al.
Environmental science & technology, 47(2), 815-820 (2012-12-15)
The fate of NO(x) (=NO + NO(2)) is important to understand because NO(x) is a significant player in air quality determination through its role in O(3) formation. Here we show that renoxification of the urban atmosphere may occur through the
Peng Lei et al.
Molecular neurodegeneration, 9, 29-29 (2014-08-16)
We recently reported that Parkinsonian and dementia phenotypes emerge between 7-12 months of age in tau-/- mice on a Bl6/129sv mixed background. These observations were partially replicated by another group using pure Bl6 background tau-/- mice, but notably they did
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Many daily contacts with metallic items are short and repetitive, and result in metal release; material, sweat, friction and wear may all be important. To study cobalt release and skin deposition as a result of many short and repetitive contacts
Marie-Pierre Isaure et al.
Journal of experimental botany, 66(11), 3201-3214 (2015-04-16)
Arabidopsis halleri is a model plant for Zn and Cd hyperaccumulation. The objective of this study was to determine the relationship between the chemical forms of Cd, its distribution in leaves, and Cd accumulation and tolerance. An interspecific cross was
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Questions

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  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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