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Specifications
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Purity (GC): |
99.9% min |
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Water: |
100 ppm max |
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Ethylene chlorohydrin: |
500 ppm max |
Transport Information
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Parameter |
Specification |
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UN Number |
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Class |
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Packing Group |
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H.S. Code |
2932209090302 |
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Stability & Reactivity |
The product is chemically stable under standard ambient conditions. |
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Storage |
Store in cool place. Keep container tightly closed in a dry and well-ventilated place. Containers which are opened must be carefully resealed and kept upright to prevent leakage. |
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Condition to Avoid |
Heat, flames and sparks. |
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Package |
Manufacturing Information
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Parameter |
Specification |
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Capacity |
10MT/month |
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Frequency |
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Main Export Countries |
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Capacity/Batch |
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Experience |
Production since 2007 |
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Stock |
Glycol sulfite丨CAS 3741-38-6 is a cyclic sulfite ester derived from ethylene glycol and sulfur dioxide. It features a five-membered ring containing both oxygen and sulfur atoms. Its chemical and physical properties make it valuable in organic synthesis, electrolyte development, and industrial intermediates.
Key Applications
1. Electrolyte Additive in Lithium-Ion Batteries
Glycol sulfite is used as an electrolyte additive to improve:
SEI (Solid Electrolyte Interphase) formation
Cycling stability
Electrochemical performance, particularly at low temperatures
Functions by reacting preferentially at the anode to form a stable, protective layer that reduces further solvent decomposition.
2. Solvent and Co-Solvent
It acts as a polar aprotic solvent with high dielectric constant, useful in:
Electrolyte formulations
Chemical reactions requiring good ion solvation
Industrial cleaning and degreasing operations
3. Intermediate in Organic Synthesis
Can serve as a reagent for introducing sulfite groups into molecules.
Used in research for sulfur-containing heterocycle synthesis and functionalization of alcohols or diols.
4. Reagent for Polymer Chemistry
Its cyclic structure and reactive sulfite group can be explored for modifying polymer backbones or introducing crosslinking points.
Investigated for use in functional polymers or battery-compatible materials.
Benefits and Features
Cyclic Stability: Five-membered ring structure offers relative thermal stability and controlled reactivity.
High Polarity: Enhances its solvent properties, particularly for ionic and polar organic species.
Reactivity with Nucleophiles: The sulfite ring can be opened by nucleophiles (e.g., amines, alcohols), offering routes to new functional materials.
Summary
Glycol sulfite丨CAS 3741-38-6 is a cyclic sulfite ester with applications in electrolyte chemistry, organic synthesis, and solvent systems. Its ability to improve battery performance, especially under challenging conditions, makes it a valuable additive in lithium-ion battery development. Additionally, its role as a reactive intermediate in functional chemistry gives it relevance in specialty chemical and material science applications.
