Brand: Hubei Tuoyuan Fine Chemical
Price: CNY 20 / KG
Min. Order: 25 KG
Ethyl Methyl Carbonate
EMC
Methyl ethyl carbonate (EMC) purity: 99.99% electronic grade | CAS number: 623-53-0

Electronic grade methyl ethyl carbonate 99.99% _ Lithium battery electrolyte solvent _ High purity EMC supplier
We specialize in supplying electronic grade methyl ethyl carbonate (EMC) with a purity of ≥ 99.99%, CAS 623-53-0, Compliant with HG/T 5158-2017 standard. Suitable for lithium-ion battery electrolytes, special solvents, and the electronics industry, providing customized technical solutions and supporting 25kg/barrel packaging.
Project parameters/description
Chemical name: Ethyl methyl carbonate (special solvent for lithium battery electrolyte)
Molecular formula
C4H8O3 (high-purity organic solvent)
Appearance: Colorless and transparent liquid, without sediment or suspended solids (meets electronic grade cleanliness requirements)
Boiling point 107 ℃ (low volatility solvent)
Density (25 ℃) 1.015 ± 0.005 g/cm ³ (precise physical property index)
Flash point 23 ℃ (closed, certified for safe storage)
Soluble in organic solvents such as alcohols and ethers (ideal solvent for replacing DMC/DEC)
Highly hygroscopic and requires sealed storage (provide moisture-proof packaging solution)

2、 Quality and technical indicators
Testing project indicator requirements (electronic grade) testing methods
Main content (EMC) ≥ 99.991% (purity) Gas chromatography (GC)
Total carbonate content ≥ 99.9991% (DMC+EMC+DEC synergistic enhancement) Gas chromatography (GC)
Residual methanol/ethanol ≤ 2 ppm (ultra-low impurity control) Gas chromatography (GC)
Moisture content ≤ 5 ppm (key technology for preventing battery electrolyte hydrolysis) Coulombic method
Chromaticity (platinum cobalt) ≤ 10 APHA (colorless and transparent quality assurance) visual inspection method
Heavy metals (Na/K, etc.) ≤ 1 μ g/mL (meets power battery grade standards) ICP-OES
Sulfate/chloride ions not detected (ND) (to prevent electrode corrosion) ion chromatography (IC)

3、 Core application areas
1. Electrolyte for lithium-ion batteries
As the core solvent of the electrolyte, it enhances the energy density (cycle life ≥ 2000 times) and low-temperature performance (stable operation at -40 ℃) of the battery, and is compatible with NCM/NCA/lithium iron phosphate systems.
2. Power battery electrolyte formula and low-temperature lithium battery solvent supplier
2. Special solvents
1. Replace traditional benzene solvents for spice synthesis (ester extraction), pharmaceutical intermediate purification, environmentally friendly coatings, and resin dissolution (reducing VOC emissions by 30%).
2. Solution for pharmaceutical grade carbonate solvents and environmentally friendly resins
3. Electronic industry
1. As an electrolyte additive for capacitors, it enhances the voltage resistance performance of MLCC/aluminum electrolytic capacitors (breakdown voltage ≥ 450V).
2. Customized development of high-precision electronic component specific solvents and EMC electrolytes

Four technical advantage modules:
Low temperature performance: Through molecular structure optimization, EMC maintains electrolyte fluidity even at -40 ℃, solving the problem of winter range degradation for new energy vehicles.
Safety: The closed flash point is 23 ℃, and when combined with flame retardant additives, it can meet the UL1642 battery safety standard.
Industry data citation:
According to Boyan Consulting, the size of China's EMC market is expected to reach 18 billion yuan by 2025, with the power battery sector accounting for over 60%.
Verify the critical role of EMC in long cycle battery systems.

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◆ Purity: 99.99% | Moisture content ≤ 5ppm
◆ Packaging: 25kg/drum (galvanized iron drum moisture-proof)
◆ Shipping: Delivery within 48 hours nationwide, supporting third-party inspection