Description

Diethyl Carbonate (CAS No. 105-58-8) is a high-purity organic carbonate ester with the molecular formula C₅H₁₀O₃. This colorless, volatile liquid is widely recognized for its excellent solvating properties, low toxicity, and broad applicability in electrochemical and synthetic processes. With a mild, pleasant odor, it serves as a versatile solvent and reagent in lithium-ion battery electrolytes, pharmaceutical synthesis, and polymer production. Our Diethyl Carbonate is rigorously tested to meet the highest industry standards, ensuring optimal performance in both research and industrial applications. Available in various packaging options, it is ideal for laboratories and manufacturing facilities requiring a reliable, high-quality carbonate solvent.

Properties

• CAS Number: 105-58-8
• Complexity: 62.1
• IUPAC Name: diethyl carbonate
• InChI: InChI=1S/C5H10O3/c1-3-7-5(6)8-4-2/h3-4H2,1-2H3
• InChI Key: OIFBSDVPJOWBCH-UHFFFAOYSA-N
• LogP: log Kow= 1.21
• Exact Mass: 118.062994177
• Molecular Formula: C5H10O3
• Molecular Weight: 118.13
• SMILES: CCOC(=O)OCC
• Topological: 35.5
• Monoisotopic Mass: 118.062994177
• Physical Description: Diethyl carbonate appears as a colorless liquid with a mild pleasant odor. It is slightly less dense than water and insoluble in water. Hence floats on water. Flash point 77 °F. Vapors are heavier than air. When heated to high temperatures it may emit acrid smoke. Used as a solvent.
• Color/Form: Colorless liquid
• Odor: Pleasant ethereal odor
• Boiling Point: 259 °F at 760 mmHg
• Melting Point: -45 °F
• Flash Point: 77 °F
• Solubility: Insoluble
• Density: 0.975 at 68 °F – Less dense than water; will float
• Vapor Density: 4.07 – Heavier than air; will sink
• Vapor Pressure: 10 mmHg at 74.8 °F
• Stability/Shelf Life: STABLE
• Autoignition Temperature: 445 °C
• Refractive Index: Index of refraction: 1.3845 @ 20 °C/D; Sadtler ref number: 8024 ; 290
• Synonyms: DIETHYL CARBONATE, Ethyl carbonate, Carbonic acid, diethyl ester, Eufin, Diatol, Diaethylcarbonat, Carbonic ether, Ethoxyformic anhydride, Diethylkarbonat, Ethyl carbonate ((EtO)2CO), Diethylkarbonat [Czech], Diaethylcarbonat [German], NSC 8849, Diethylester kyseliny uhlicite, CCRIS 6229, HSDB 925, EINECS 203-311-1, UN2366, Diethylester kyseliny uhlicite [Czech], UNII-3UA92692HG, DTXSID3025041, AI3-00365, NSC-8849, C2H5OC(O)OC2H5, ETHYL CARBONATE [MI], Diethyl ester of carbonic acid, DTXCID105041, DIETHYL CARBONATE [HSDB], EC 203-311-1, UN 2366, DIAETHYLCARBONAT (GERMAN), Diethyl carbonic acid, DIETHYL CARBONATE [INCI], inchi=1/c5h10o3/c1-3-7-5(6)8-4-2/h3-4h2,1-2h, oifbsdvpjowbch-uhfffaoysa-n, 105-58-8, Carbonic acid diethyl ester, diethylcarbonate, NCI-C60899, Diethyl-d10Carbonate, Diethylcarbonate, 99%, Diethyl carbonate-13C5, ethyl ethoxyformate, 3UA92692HG, 440671-47-6, diethylcarbonat, Diethyl carbonate ester, carbonic acid diethylester, Diethyl carbonate, 99%, SCHEMBL3673, WLN: 2OVO2, SCHEMBL23198, SCHEMBL23199, CHEMBL1533495, NSC8849, CHEBI:173463, Tox21_200769, MFCD00009107, SBB060086, Diethyl carbonate, analytical standard, AKOS000120910, Diethyl carbonate, anhydrous, >=99%, FD60373, NCGC00091669-01, NCGC00091669-02, NCGC00258323-01, BP-21019, CAS-105-58-8, LS-13080, DB-029661, Diethyl carbonate, purum, >=98.0% (GC), NS00041201, ST51046327, Diethyl carbonate LBG-23605, LBG-23601, EN300-20788, D97668, Diethyl carbonate [UN2366] [Flammable liquid], Q420616, F0001-0109, Z104482516, Diethyl carbonate, >=99%, acid <10 ppm, H2O <10 ppm

Application

Diethyl Carbonate is extensively used as a solvent in lithium-ion battery electrolytes due to its high dielectric constant and ability to enhance ionic conductivity. It also serves as a key intermediate in pharmaceutical synthesis, particularly for carbamates and other carbonate derivatives. Additionally, it is employed as a carbonylating agent in organic reactions and as a plasticizer in polymer production.

Safety and Hazards

GHS Hazard Statements

• H226: Flammable liquid and vapor [Warning Flammable liquids]
• H335: May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]

Precautionary Statements

• P210, P233, P240, P241, P242, P243, P261, P271, P280, P303+P361+P353, P304+P340, P319, P370+P378, P403+P233, P403+P235, P405, and P501

Hazard Classes and Categories

• Flam. Liq. 3 (97.1%)
• Skin Irrit. 2 (13.8%)
• Eye Irrit. 2 (14.3%)
• STOT SE 3 (13.8%)

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Disclaimer: Sold exclusively for laboratory research. Prohibited for commercial use, diagnostics, or human/animal applications. Buyers assume all compliance liability.