Methyl ethyl carbonate

Product Details

CasNo： 623-53-0

MF： C4H8O3

Appearance： liquid

Delivery Time： 15 days

Packing： 25kg/bag

Purity： 50%

• Basic Information
  • Molecular Formula: C?H?O?
  • Molecular Weight: 104.10
  • CAS Registry Number: 623 - 53 - 0
  • EINECS Number: 433 - 480 - 9
• Physical Properties
  • Appearance: Colorless transparent liquid
  • Melting Point: -14℃
  • Boiling Point: 107℃
  • Density: 1.01 g/cm³ (or 1.006 g/mL at 25°C)
  • Refractive Index: n??/D 1.378
  • Flash Point: 23°C
  • Vapor Pressure: 43 hPa at 25℃
  • Solubility: Insoluble in water, but soluble in organic solvents such as alcohol and ether.
• Chemical Properties
  • Stability: EMC is a relatively stable compound, but it is prone to decomposition reactions under the conditions of light, heat, acid, alkali, etc.
  • Reactivity: It contains active reaction groups such as methyl, ethyl and carbonyl. As a fine - synthesis intermediate, it can react with alcohols, phenols, amines and esters.
• Quality Indicators
  • Usually, the content is required to be ≥99.99%, and there are also different grades such as ≥99.9% or ≥99.5%. At the same time, there are strict restrictions on the content of impurities such as dimethyl carbonate and diethyl carbonate, generally required to be ≤0.005% - 0.05%.
• Synthesis Methods
  • It is usually prepared by the reaction of methyl chloroformate with ethanol. It can also be prepared by adding dimethyl carbonate, ethanol and calcium oxide into a flask equipped with a stirrer and a reflux device, reacting under heating and stirring conditions, then removing the solid by centrifugation, and finally purifying through distillation to obtain EMC.
• Uses
  • Solvent for Lithium - ion Battery Electrolyte: It is an excellent solvent for lithium - ion battery electrolytes. It has the characteristics of strong solubility for lithium salts, safety and stability. It can improve the energy density and discharge capacity of batteries, and has the advantages of long cycle life, good safety performance, no memory effect, and good low - temperature performance.
  • Organic Synthesis: It can be used in organic synthesis reactions and participate in the preparation of various chemicals as an intermediate.
  • Solvent: It can be used as a solvent for special fragrances and intermediates, and can also be used for the dissolution of resins, oils, nitrocellulose and cellulose ethers.
• Storage and Transportation
  • It should be stored in a cool, ventilated and dry place, away from fire sources and oxidants, and stored and transported according to the regulations for flammable chemicals. The dangerous transportation code is UN3272, the safety mark is S16 (keep away from fire sources), the danger mark is R10 (flammable), and the fire - fighting agents can be water mist, dry powder, foam or carbon dioxide fire - fighting agents.