Dimethyl sulfite
Synonym(s):Methyl sulfite
- CAS NO.:616-42-2
- Empirical Formula: C2H6O3S
- Molecular Weight: 110.13
- MDL number: MFCD00008415
- EINECS: 210-481-0
- SAFETY DATA SHEET (SDS)
- Update Date: 2023-11-28 16:31:43
What is Dimethyl sulfite?
Chemical properties
CLEAR COLORLESS TO PALE YELLOW LIQUID
The Uses of Dimethyl sulfite
The conformations and vibrational spectra of dimethyl sulfite was studied by matrix-isolation fourier transform infrared spectroscopy and to study its conformational selective aggregation. It may be used in organic synthesis.
Preparation
Dimethyl sulfite is prepared from a 1:2 ratio of thionyl chloride and methanol. The reaction can be catalyzed by tertiary amine bases and likely proceeds via the chlorosulfinate (MeOS(O)Cl), this intermediate will exist only fleetingly in the presence of methanol and as such its decomposition to methyl chloride and sulfur dioxide (via the slower SNi mechanism) is not observed to any great extent.
SOCl2 + 2 CH3OH → (CH3O)2SO + 2 HCl
What are the applications of Application
The conformations and vibrational spectra of dimethyl sulfite was studied by matrix-isolation fourier transform infrared spectroscopy and to study its conformational selective aggregation.
Dimethyl sulfite may be used in organic synthesis. It is used as an additive in some polymers to prevent oxidation. It is also a potentially useful high energy battery electrolyte solvent.
Definition
ChEBI: Dimethyl sulfite is a sulfite ester.
General Description
Dimethyl sulfite is an insect repellent and also experimentally identified as a mutagenic agent.
Properties of Dimethyl sulfite
Melting point: | 0°C |
Boiling point: | 126-127 °C (lit.) |
Density | 1.294 g/mL at 25 °C (lit.) |
refractive index | n |
Flash point: | 106 °F |
storage temp. | Flammables area |
form | Liquid |
color | Clear colorless to pale yellow |
Water Solubility | soluble |
BRN | 1700256 |
Dielectric constant | 22.5(23℃) |
CAS DataBase Reference | 616-42-2(CAS DataBase Reference) |
NIST Chemistry Reference | Sulfurous acid, dimethyl ester(616-42-2) |
EPA Substance Registry System | Sulfurous acid, dimethyl ester (616-42-2) |
Safety information for Dimethyl sulfite
Signal word | Warning |
Pictogram(s) |
Flame Flammables GHS02 Exclamation Mark Irritant GHS07 |
GHS Hazard Statements |
H226:Flammable liquids H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
Precautionary Statement Codes |
P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P302+P352:IF ON SKIN: wash with plenty of soap and water. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for Dimethyl sulfite
New Products
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