Diethyl sulfite Chemical Properties

Boiling point:

158-160 °C(lit.)

Density 

1.077 g/mL at 25 °C(lit.)

refractive index 

n20/D 1.414(lit.)

Flash point:

129 °F

storage temp. 

Flammables area

form 

Liquid

color 

Clear colorless

BRN 

1701906

Dielectric constant

15.9（20℃）

CAS DataBase Reference

623-81-4(CAS DataBase Reference)

NIST Chemistry Reference

Sulfurous acid, diethyl ester(623-81-4)

EPA Substance Registry System

Sulfurous acid, diethyl ester (623-81-4)

Safety Information

Hazard Codes 

Xi

Risk Statements 

10-36/37/38

Safety Statements 

26-36-24/25-16

RIDADR 

UN 1993 3/PG 3

WGK Germany 

3

RTECS 

WT3511000

HazardClass 

3.2

PackingGroup 

III

HS Code 

29209085

MSDS

• Language:English Provider:Diethyl sulfite
• Language:English Provider:ACROS
• Language:English Provider:SigmaAldrich

Diethyl sulfite Usage And Synthesis

Chemical Properties

clear colorless solution

Uses

Diethyl sulfite (DES) is used as a film forming and high temperature additive for electrolytes in lithium ion batteries. It improves decomposition resistance of the electrolyte. Diethyl sulfite is also used as solvent for lithium bis(oxalato)borate (LiBOB) based electrolytes. The LiBOB-based electrolyte with DES shows high oxidation potentials, and good conductivities.

General Description

This product has been enhanced for energy efficiency.

Diethyl sulfite(623-81-4)Related Product Information

• Dimethyl sulfite
• Triethyl phosphite
• TRIHEXYL PHOSPHITE
• DIPHENYL PHOSPHITE
• DIISOBUTYL PHOSPHITE
• PHOSPHOROUS ACID TRIOCTYL ESTER
• Triphenyl phosphite
• Diisopropyl phosphite
• Diethyl phosphite
• Thiodiglycolic acid
• Dimethyl phosphite
• 1,3,2-Dioxathiane 2-oxide
• ENDOSULFAN SULFATE
• ARAMITE
• BETA-ENDOSULFAN
• Endosulfan I
• Ethanesulfonic acid
• Sulfurous Acid