Vinylene Carbonate（VC）

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：

                         

Standard：

Grade Items	Specifications
	Battery	Top Grade
Appearance	Colorless transparent liquid	Colorless transparent liquid
Color（AHPA）	≤10	≤20
Purity（GC）	≥99.995%	≥99.95%
Water（Karl-Fischer）	≤30ppm	≤30ppm
Chloride (Cl-)	≤10ppm	≤10ppm
Sulfate（SO42-）	≤10ppm	≤10ppm
Free Chlorine	≤10ppm	≤10ppm
Stabilizer（BHT） （2,6-Di-tert-butyl-4-methylphenol）	70-110ppm, Or according to customer requirements.

Properties：It 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：Vinyl carbonate 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. Vinyl 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：This product should be stored in a cool, ventilated and dry place. Keep away from heat and fire source; Avoid direct light irradiation; Avoid contact with oxide, reducing agent, acids and bases.

Packing：This product is packed in stainless steel drums with quick joints and filled with nitrogen (nitrogen pressure 0.11-0.13mpa). Net weight 20kg or 200kg drum, or use 5kg high-density polyethylene bottles with vacuumed aluminum foil bag.