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435597

Sigma-Aldrich

Sulfuric acid, fuming

reagent grade, 20%, as free SO3

Sinônimo(s):

Oleum

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About This Item

Fórmula linear:
H2SO4 · (SO3)x
Número CAS:
8014-95-7
Peso molecular:
98.08
Beilstein:
2037554
Número MDL:
MFCD00137792
Código UNSPSC:
12352106
ID de substância PubChem:
329756351
NACRES:
NA.21
Preço e disponibilidade não estão disponíveis no momento.

grau

reagent grade

Nível de qualidade

100

densidade de vapor

3 (vs air)

pressão de vapor

2 mmHg ( 25 °C)

Formulário

liquid

concentração

20% (free SO3)

densidade

1.925 g/mL at 25 °C (lit.)

cadeia de caracteres 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);

chave InChI

HIFJUMGIHIZEPX-UHFFFAOYSA-N

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Descrição geral

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]

Aplicação

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
GHS06,GHS05

Palavra indicadora

Danger

Frases de perigo

H314,H330,H335

Classificações de perigo

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

Órgãos-alvo

Respiratory system

Perigos de suplementos

EUH014

Código de classe de armazenamento

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

Classe de risco de água (WGK)

WGK 1

Ponto de fulgor (°F)

Not applicable

Ponto de fulgor (°C)

Not applicable

Escolha uma das versões mais recentes:

Certificados de análise (COA)

Lot/Batch Number
SHBS3852
SHBR4356
SHBR9812
SHBS1396
SHBR1177

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Visite a Biblioteca de Documentos

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)
Bromination of methylpyridines in fuming sulfuric acid.
Van der Does L and Hertog HJD.
Rec. Trav. Chim., 84(7), 951-964 (1965)
Daley RF and Daley SJ.
Organic Chemistry, Part 3 of 3, 801-801 null
Sulfonation of poly (propylene) films with fuming sulfuric acid.
Kaneko M and Sato H.
Macromolecular Chemistry and Physics, 206(4), 456-463 (2005)
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)
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Questions

1–3 of 3 Questions  

  1. 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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  2. 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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  3. What kind of container does this come in? What is the top (septum?)?

    1 answer

    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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