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Key Documents

901592

Sigma-Aldrich

Sulfur dioxide solution

0.5 M in THF

Synonym(s):

Sulfurous anhydride, Sulfurous oxide, Sulphur dioxide

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About This Item

Linear Formula:
SO2
CAS Number:
7446-09-5
UNSPSC Code:
12352303
NACRES:
NA.22

form

liquid

reaction suitability

reagent type: reductant

concentration

0.5 M in THF

density

0.8935 g/mL

InChI

1S/O2S/c1-3-2

InChI key

RAHZWNYVWXNFOC-UHFFFAOYSA-N

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Application

Sulfur dioxide solution can be used as a reducing agent for the reduction of:
  • Pentavalent arsenic to trivalent arsenic in the presence of sulfuric acid.
  • Graphene oxide to graphene in the presence of water.
Valuable reagent offered as a solution in tetrahydrofuran for more convenient handling.

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Danger

Hazard Classifications

Acute Tox. 4 Oral - Carc. 2 - Eye Dam. 1 - Flam. Liq. 2 - Skin Irrit. 2 - STOT SE 3

target_organs

Respiratory system

supp_hazards

EUH018,EUH019

Storage Class

3 - Flammable liquids

wgk_germany

WGK 1

flash_point_f

0.5 °F

flash_point_c

-17.5 °C

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Reduction and deposition of arsenic in copper electrolyte
ZHOU W, et al.
Transactions of Nonferrous Metals Society of China, 21, 2772-2777 (2011)
Chemical reduction of graphene oxide to graphene by sulfur-containing compounds
Chen W, et al.
The Journal of Physical Chemistry C, 114, 19885-19890 (2010)

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