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295698

Sigma-Aldrich

Sulfur dioxide

≥99.9%

Sinônimo(s):

Sulfurous anhydride, Sulfurous oxide, Sulphur dioxide

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About This Item

Fórmula linear:
SO2
Número CAS:
Peso molecular:
64.06
Beilstein:
3535237
Número CE:
Número MDL:
Código UNSPSC:
12142100
ID de substância PubChem:
NACRES:
NA.22
Preço e disponibilidade não estão disponíveis no momento.

densidade de vapor

2.26 (21 °C, vs air)

Nível de qualidade

pressão de vapor

1779 mmHg ( 21 °C)

Ensaio

≥99.9%

p.e.

−10 °C (lit.)

pf

−73 °C (lit.)

densidade

1.25 g/mL at 25 °C (lit.)

cadeia de caracteres SMILES

O=S=O

InChI

1S/O2S/c1-3-2

chave InChI

RAHZWNYVWXNFOC-UHFFFAOYSA-N

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Aplicação

Sulfur dioxide is primarily used as a feedstock for the production of sulfuric acid (contact process).[1] It is generally used in the synthesis of a variety of sulfur-containing organic compounds like alkyl/aryl sulfonyl chlorides, sulfinates, sultines, and polysulfone.[1][2]

Embalagem

Supplied in a carbon steel lecture bottle with a CGA180M/CGA110F needle valve installed.

Compatible with the following:
  • Aldrich® lecture-bottle station systems
  • Aldrich® lecture-bottle gas regulators

Outras notas

Informações legais

Aldrich is a registered trademark of Sigma-Aldrich Co. LLC

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Palavra indicadora

Danger

Frases de perigo

Classificações de perigo

Acute Tox. 3 Inhalation - Eye Dam. 1 - Press. Gas Liquefied gas - Skin Corr. 1B

Código de classe de armazenamento

2A - Gases

Classe de risco de água (WGK)

WGK 1

Ponto de fulgor (°F)

Not applicable

Ponto de fulgor (°C)

Not applicable

Equipamento de proteção individual

Faceshields, Gloves, Goggles, multi-purpose combination respirator cartridge (US)


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Certificados de análise (COA)

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Visite a Biblioteca de Documentos

Sulfur dioxide.
Ullmann's Encyclopedia of Industrial Chemistry (2000)
Sulfur dioxide
Understanding Wine Chemistry, 4(7), 140-148 (2016)
The development and application of sulfur dioxide surrogates in synthetic organic chemistry.
Emmett EJ and Willis MC
Asian Journal of Organic Chemistry, 4(7), 602-611 (2015)
Yuan-Qiang Sun et al.
Chemical communications (Cambridge, England), 49(26), 2637-2639 (2013-02-26)
A coumarin-hemicyanine dye was reported for ratiometric fluorescent detection of SO2 derivatives HSO3(-) and SO3(2-) based on a novel addition-rearrangement cascade reaction.
Eliza Harris et al.
Science (New York, N.Y.), 340(6133), 727-730 (2013-05-11)
Global sulfate production plays a key role in aerosol radiative forcing; more than half of this production occurs in clouds. We found that sulfur dioxide oxidation catalyzed by natural transition metal ions is the dominant in-cloud oxidation pathway. The pathway

Questions

1–2 of 2 Questions  
  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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