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435597

Sigma-Aldrich

Sulfuric acid, fuming

reagent grade, 20%, as free SO3

Sinonimo/i:

Oleum

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500 G
411,00 €

411,00 €


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500 G
411,00 €

About This Item

Formula condensata:
H2SO4 · (SO3)x
Numero CAS:
Peso molecolare:
98.08
Beilstein:
2037554
Numero MDL:
Codice UNSPSC:
12352106
ID PubChem:
NACRES:
NA.21

411,00 €


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Grado

reagent grade

Livello qualitativo

Densità del vapore

3 (vs air)

Tensione di vapore

2 mmHg ( 25 °C)

Stato

liquid

Concentrazione

20% (free SO3)

Densità

1.925 g/mL at 25 °C (lit.)

Stringa SMILE

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);
HIFJUMGIHIZEPX-UHFFFAOYSA-N

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Categorie correlate

Descrizione generale

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]

Applicazioni

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]

Pittogrammi

Skull and crossbonesCorrosion

Avvertenze

Danger

Indicazioni di pericolo

Classi di pericolo

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

Organi bersaglio

Respiratory system

Rischi supp

Codice della classe di stoccaggio

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

Classe di pericolosità dell'acqua (WGK)

WGK 1

Punto d’infiammabilità (°F)

Not applicable

Punto d’infiammabilità (°C)

Not applicable


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Certificati d'analisi (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)
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)
Daley RF and Daley SJ.
Organic Chemistry, Part 3 of 3, 801-801 null
Products of reaction of fullerene C60 with fuming sulfuric acid studied by IR and ESR spectroscopy.
Garkusha OG, et al.
Russian Chemical Bulletin, 51(4), 628-631 (2002)

Domande

1–3 di 3 domande  
  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 risposta
    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 risposta
    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

      Utile?

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

    1 risposta
    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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