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磷酸三丁酯(Tributyl phosphate,TBP),又称磷酸正丁酯,是一种无色或淡黄色,无味,中度溶于水的液体;其用途广泛,不仅是液压油阻燃剂的主要成分,还可作为纤维素酯、油漆和乙烯基树脂的增塑剂或作为溶剂提取稀有金属(如铀、钚等),也用于制造塑料和油井水泥套管~([1-3])。环境中的TBP会紧密结合空气中的尘粒并通过呼吸道进入人体;职业性TBP接触多发生于液压剂使用过程,可通过摄入、吸入、皮肤或眼
Tributyl phosphate (TBP), also known as n-butyl phosphate, is a colorless or light yellow, odorless, moderately water-soluble liquid; it is used for a wide variety of purposes and is not only the predominant component of hydraulic oil flame retardants It can also be used as a plasticizer for cellulose esters, paints and vinyl resins or as a solvent for the extraction of rare metals (such as uranium, plutonium, etc.) as well as for the manufacture of plastic and oil well cement casing (1-3) . Environmental TBP will be closely linked with the dust particles in the air and enter the body through the respiratory tract; occupational TBP exposure occurs mostly in the hydraulic agent process, by intake, inhalation, skin or eyes