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Merck

435597

Sigma-Aldrich

Sulfuric acid, fuming

reagent grade, 20%, as free SO3

Sinónimos:

Oleum

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500 G
410,00 €

410,00 €


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500 G
410,00 €

About This Item

Fórmula lineal:
H2SO4 · (SO3)x
Número de CAS:
Peso molecular:
98.08
Beilstein:
2037554
Número MDL:
Código UNSPSC:
12352106
ID de la sustancia en PubChem:
NACRES:
NA.21

410,00 €


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grado

reagent grade

Nivel de calidad

densidad de vapor

3 (vs air)

presión de vapor

2 mmHg ( 25 °C)

Formulario

liquid

concentración

20% (free SO3)

densidad

1.925 g/mL at 25 °C (lit.)

cadena SMILES

O=S(=O)=O.OS(O)(=O)=O

InChI

1S/H2O4S.O3S/c1-5(2,3)4;1-4(2)3/h(H2,1,2,3,4);

Clave InChI

HIFJUMGIHIZEPX-UHFFFAOYSA-N

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Descripción general

Fuming sulfuric acid is an inorganic acid, that can be produced by the addition of sulfur trioxide to concentrated sulfuric acid.[1] It is commonly used as a sulfonating reagent in sulfonation reactions. When fuming sulfuric acid is employed as reaction medium, bromination takes place only in the pyridine nucleus of isomeric methylpyridines and 2,6-dimethylpyridine.[2] It can also oxidize fullerene C60 to form fullerene polymers.[3]

Aplicación

Fuming sulfuric acid may be used as a sulfonating agent for the synthesis of:
  • sulfonated poly(1,4-phenylene sulfide) [4]
  • water-soluble polyphosphazene polyelectrolyte[5]
  • sulfated graphene[6]

Pictogramas

Skull and crossbonesCorrosion

Palabra de señalización

Danger

Frases de peligro

Clasificaciones de peligro

Acute Tox. 2 Inhalation - Skin Corr. 1A - STOT SE 3

Órganos de actuación

Respiratory system

Riesgos supl.

Código de clase de almacenamiento

6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

Clase de riesgo para el agua (WGK)

WGK 1

Punto de inflamabilidad (°F)

Not applicable

Punto de inflamabilidad (°C)

Not applicable


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Certificados de análisis (COA)

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Sulfated graphene as an efficient solid catalyst for acid-catalyzed liquid reactions.
Liu F, et al.
Journal of Materials Chemistry, 22(12), 5495-5502 (2012)
Dispersion of single-walled carbon nanotubes in water with polyphosphazene polyelectrolyte.
Park HJ, et al.
Journal of Inorganic and Organometallic Polymers and Materials, 16(4), 359-364 (2006)
Sulfonation of poly (propylene) films with fuming sulfuric acid.
Kaneko M and Sato H.
Macromolecular Chemistry and Physics, 206(4), 456-463 (2005)
Daley RF and Daley SJ.
Organic Chemistry, Part 3 of 3, 801-801 null
Bromination of methylpyridines in fuming sulfuric acid.
Van der Does L and Hertog HJD.
Rec. Trav. Chim., 84(7), 951-964 (1965)

Preguntas

1–3 de 3 Preguntas  
  1. How can I determine the shelf life / expiration / retest date of this product?

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

    1 respuesta
    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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  3. What kind of container does this come in? What is the top (septum?)?

    1 respuesta
    1. This product is packaged in an amber glass bottle and a red HDPE cap with a PTFE liner. This is a screw cap, it does not have a septum.

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