CAS: 77-93-0
Triethyl citrate (TEC) is an ester of citric acid. It is a colorless, odorless, oily liquid that is slightly soluble in water and miscible with most organic solvents. TEC is known for its low toxicity and good biodegradability. It serves primarily as a solvent, plasticizer, and an additive in various industries.
TEC is widely used as a plasticizer, solvent, humectant, defoaming agent, and fragrance fixative. In the food industry, it functions as a carrier solvent for flavors and a whipping agent. In pharmaceuticals, it is used as a solvent and a coating agent. It also finds use as an emollient and film-former in cosmetics.
Triethyl citrate is utilized in various applications including: (1) **Plastics and Polymers**: As a plasticizer for cellulose acetates, PVC, vinyl resins, and other polymers, especially in food packaging films and toys. (2) **Pharmaceuticals**: As a solvent for active ingredients, a granulation aid, and a plasticizer in tablet coatings (e.g., enteric coatings). (3) **Cosmetics and Personal Care**: A solvent for fragrances, an emollient, and a film-forming agent in products like hairsprays, nail polishes, and lotions. (4) **Food and Beverage**: As a food additive (E number E1505) primarily as a carrier solvent for flavorings and as a whipping aid for egg whites and other aerated products. (5) **Industrial**: As a solvent in inks, adhesives, and coatings.
Triethyl citrate is generally considered safe for its intended uses. It has been designated as Generally Recognized As Safe (GRAS) by the U.S. FDA for use as a food additive. It exhibits low toxicity and is not known to be a skin or eye irritant under normal handling conditions. TEC is readily biodegradable. While it has a relatively high flash point, it is combustible and appropriate handling precautions for flammable liquids should be observed.
TECCitric acid triethyl esterEthyl citrate123-Propanetricarboxylic acid2-hydroxy-triethyl esterTriethyl 2-hydroxypropane-123-tricarboxylateE 1505
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