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Merck

295698

Sigma-Aldrich

Schwefeldioxid

≥99.9%

Synonym(e):

Sulfurous anhydride, Sulfurous oxide, Sulphur dioxide

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About This Item

Lineare Formel:
SO2
CAS-Nummer:
Molekulargewicht:
64.06
Beilstein:
3535237
EG-Nummer:
MDL-Nummer:
UNSPSC-Code:
12142100
PubChem Substanz-ID:
NACRES:
NA.22
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Dampfdichte

2.26 (21 °C, vs air)

Qualitätsniveau

Dampfdruck

1779 mmHg ( 21 °C)

Assay

≥99.9%

bp

−10 °C (lit.)

mp (Schmelzpunkt)

−73 °C (lit.)

Dichte

1.25 g/mL at 25 °C (lit.)

SMILES String

O=S=O

InChI

1S/O2S/c1-3-2

InChIKey

RAHZWNYVWXNFOC-UHFFFAOYSA-N

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Anwendung

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]

Verpackung

Packaged in carbon steel lecture bottles with CGA 110F/180M Al-Si-Bronze needle valve.

Sonstige Hinweise

Rechtliche Hinweise

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

Entlüftungsventil

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Signalwort

Danger

Gefahreneinstufungen

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

Lagerklassenschlüssel

2A - Gases

WGK

WGK 1

Flammpunkt (°F)

Not applicable

Flammpunkt (°C)

Not applicable

Persönliche Schutzausrüstung

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


Hier finden Sie alle aktuellen Versionen:

Analysenzertifikate (COA)

Lot/Batch Number

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In der Dokumentenbibliothek finden Sie die Dokumentation zu den Produkten, die Sie kürzlich erworben haben.

Die Dokumentenbibliothek aufrufen

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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