Sulfur Dioxide Properties, Molecular Formula, Applications - WorldOfChemicals

Sulfur Dioxide Properties

Sulfur Dioxide

Molecule 3D Structure Image
Molecule Structure Image

Description

 

Sulfur dioxide is produced by volcanoes and in various industrial processes. Since coal and petroleum often contain sulfur compounds, their combustion generates sulfur dioxide unless the sulfur compounds are removed before burning the fuel. Sulfur dioxide is an intermediate in the production of sulfuric acid. It used as a preservative for dried apricots and other dried fruits owing to its antimicrobial properties. As a preservative, it maintains the appearance of the fruit and prevents rotting. Sulfur dioxide is also a good reductant. In the presence of water, sulfur dioxide is able to decolorize substances. Specifically it is a useful reducing bleach for papers and delicate materials such as clothes. Sulfur dioxide is a versatile inert solvent that has been widely used for dissolving highly oxidizing salts. It is also used occasionally as a source of the sulfonyl group in organic synthesis.

Chemical Properties

Acidity 1.81
Appearance Colorless gas
Boiling Point −10.0 °C
CAS Number 7446-09-5
Density 2.551 g/l
Dipole Moment 1.62D
EINECS Number 231-195-2
IUPAC Name Sulfur Dioxide
InChI 1S/O2S/c1-3-2
InChIKey RAHZWNYVWXNFOC-UHFFFAOYSA-N
Melting Point −75.5 °C
Molar Mass 64.07 g/mol
Molecular Formula SO2
Molecular Shape Bent
NFPA 704 H-3,F-0,R-0,C-NA
Other_Cations Selenium Dioxide;Tellurium Dioxide
RTECS Number WS4550000
Related Compounds Sulfurous Acid;Ozone
Solubility 11.58 g/100 ml
Synonyms Sulfur(IV) Oxide;Sulfurous Anhydride
Viscosity 0.403 cPs
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