Diethyl Carbonate / DEC CAS 105-58-8

1. Diethyl carbonate is a key solvent and electrolyte component in lithium-ion batteries, enhancing cycling efficiency and high-voltage stability .
2. DEC CAS 105-58-8 serves as a green, bio-based extraction solvent for determining polycyclic aromatic hydrocarbons (PAHs) in food and environmental samples .
3. Diethyl carbonate functions as a transesterification agent to improve the rheological properties of modified cellulose ethers for petroleum industry applications .

1. Store Diethyl carbonate in a tightly sealed container in a cool, dry, well-ventilated place away from heat, sparks, and open flames, as it is a flammable liquid (flash point 25-33°C) .
2. Keep DEC CAS 105-58-8 under inert gas and strictly away from strong oxidizing agents, as it is moisture sensitive and can form explosive mixtures with air .
3. Handle Diethyl carbonate using appropriate personal protective equipment including chemical-resistant gloves and safety goggles, as it causes serious eye irritation (H319) and may cause respiratory irritation (H335) .

1. Isolate the DEC CAS 105-58-8 spill area, eliminate all ignition sources, and wear full protective equipment including self-contained breathing apparatus before handling Diethyl carbonate .
2. Contain liquid Diethyl carbonate using dry inert non-combustible absorbent material like sand, collect using non-sparking tools into sealed, labeled containers for disposal, and prevent entry into drains or waterways .
3. Personnel cleaning Diethyl carbonate spills must use explosion-proof equipment and dispose of waste through a licensed hazardous waste facility, as Diethyl carbonate is classified for transport (UN 2366, Hazard Class 3, Packing Group III) .

1. Diethyl carbonate is classified with GHS signal word "Warning" as a flammable liquid and vapor (H226) that causes serious eye irritation (H319), skin irritation (H315), and may cause respiratory irritation (H335) .
2. DEC CAS 105-58-8 has low acute toxicity but is a mild irritant and anesthetic; inhalation may cause headache, dizziness, and nausea, while liquid or vapor can irritate the eyes and skin .
3. Diethyl carbonate has a boiling point of 126-128°C, melting point of -43°C, density of 0.98 g/cm³, is almost insoluble in water but miscible with organic solvents, and thermal decomposition produces toxic fumes including carbon oxides .