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Vinylene Carbonate (VC)

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Vinylene Carbonate

Synonyms：1,3-Dioxo-2-one; VC

CAS No.：872-36-6

EINECS No.：212-825-5

Molecular Formula：C₃H₂O₃

Molecular Weight：86.046

Structure Formula：

Vinylene Carbonate

Standard：

Item	Specifications
Appearance	Colorless transparent liquid
Color (Hazen)	≤10
Purity (no BHT)	≥99.95%
Stabilizer (BHT)	40~100ppm
Water	≤20ppm
Free acid (as HF)	≤50ppm
Sulfate (SO₄^2-)	≤5ppm
Chloride (Cl^-)	≤2ppm
K	≤1ppm
Na	≤1ppm
Fe	≤1ppm
Ca	≤1ppm
Pb	≤1ppm
Ba	≤1ppm
Mn	≤1ppm
Zn	≤1ppm

Properties：Vinylene carbonate is a colorless or slightly yellow transparent liquid. Melting point: 19-22 ℃, Boiling point: 162℃, Relative density (25℃): 1.355g/ml, Flash point: 73℃, Refractive index: 1.42-1.422, Water solubility: 11.5g/100ml.

Uses：Vinylene carbonate (VC) is a new type of film forming additive and overcharge protection additive for lithium-ion batteries. It can form a layer of solid electrolyte interface film (SEI film) by electrochemical reaction on the negative electrode surface during the initial charge and discharge of lithium-ion batteries, and effectively inhibit the embedding of solvent molecules. It has good performance at high and low temperature, and excellent anti-bloating function. Vinylene carbonate can improve the capacity and cycle life of the lithium-ion battery. In addition, it can also be used as a monomer for the preparation of polyvinyl carbonate.

Storage：Store in a cool, dry and well-ventilated warehouse. Keep away from heat and fire source. Avoid direct light irradiation. Avoid contact with oxide, reducing agent, acids and bases.

Packing：200kg stainless steel drums with quick joints and filled with nitrogen (nitrogen pressure 0.11-0.13mpa), or 5kg HDPE bottle with vacuumed aluminum foil bag.

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