Dimethyl sulfite

  • Methylsulfite
  • Dimethoxysulfoxid
  • Schwefligsäuredimethylester
  • DMS

Colorless liquid

Liquid

1.21 g · cm -3 ( 20 ° C)

126-127 ° C

Decomposition in water

1.4083 (20 ° C, 589 nm)

Attention

-523.6 KJ / mol

Template: Infobox chemical / molecular formula search available

Dimethyl sulfite is the dimethyl ester of sulfurous acid. The abbreviation DMS often used is not clear, since it is also used for dimethyl sulfate. A mix of substances is dangerous because of their different characteristics. Dimethyl sulfite is the simplest organic sulfite.

Production and representation

Although dimethyl formally derived from sulphurous acid, it is prepared by reaction of thionyl chloride and methanol.

CAS registry number Dangerous Substances Directive (67/548/EEC) CRC Handbook of Chemistry and Physics
240396
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