Diethyl sulfite

Diethyl sulfite (C₄H₁₀O₃S) is an ester of sulfurous acid. Among other properties, diethyl sulfite inhibits the growth of mold spores during grain storage.[1]

Diethyl sulfite

Names
IUPAC name 1-Ethoxysulfinyloxyethane
Other names Diethyl sulphite Sulfurous acid, diethyl ester
Identifiers
CAS Number	623-81-4^Y
3D model (JSmol)	Interactive image Interactive image
ChemSpider	11697^Y
ECHA InfoCard	100.009.832
EC Number	210-815-5
PubChem CID	12197
CompTox Dashboard (EPA)	DTXSID0060777
InChI InChI=1S/C4H10O3S/c1-3-6-8(5)7-4-2/h3-4H2,1-2H3^Y Key: NVJBFARDFTXOTO-UHFFFAOYSA-N^Y InChI=1/C4H10O3S/c1-3-6-8(5)7-4-2/h3-4H2,1-2H3 Key: NVJBFARDFTXOTO-UHFFFAOYAE
SMILES CCOS(=O)OCC O=S(OCC)OCC
Properties
Chemical formula	C4H10O3S
Molar mass	138.18 g·mol^−1
Appearance	Clear liquid
Density	1.88 g/cm^3
Boiling point	158 to 160 °C (316 to 320 °F; 431 to 433 K)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

Diethyl sulfite is used as an additive in some polymers to prevent oxidation.[2]

See also

• Dimethyl sulfite
• Diethyl sulfate
• Diethyl sulfoxide

References

1. Pasiut, Lad A.; DeMarinis, F. (1966). "Inhibition of growth of spores of Penicillium and Aspergillus isolated from the white molds of silages". Ohio Journal of Science. 66 (1): 64–68.
2. Guenther, A.; Koenig, T.; Habicher, W. D.; Schwetlick, K. (1997). "Antioxidant action of organic sulfites. I. Esters of sulfurous acid as secondary antioxidants". Polymer Degradation and Stability. 55 (2): 209–216. doi:10.1016/S0141-3910(96)00150-4.

External links

• WebBook page for C4H10SO3