Tributyl physical properties

For many years, the plasticiser DINP has been the primary plasticiser used in PVC toys. However, it is claimed by some pressure groups that the phthalate plasticiser leaches from PVC and poses a potential health hazard to children. Toxicity is the major concern when seeking a replacement for DINP. Others are compatibility, processability, physical properties and cost. With respect to the processability and cost ratio, a table is presented for different plasticisers used in PVC toys. The use of acetyl tributyl citrate as a plasticiser in PVC is discussed. WESTERN EUROPE-GENERAL... 

PHYSICAL PROPERTIES colorless crystals or white to off-white powder odorless or slight, aromatic odor insoluble in water practically insoluble in dilute acids and alkalies soluble in acetone, benzene, ether, carbon tetrachloride, kerosene, morpholine, tetralin, and tributyl phosphate freely soluble in pyridine and dioxane solubility in organic solvents increases with elevated temperatures MP (108.5-109°C, 227-228°F) BP (260°C, 500°F) DN (1.5 g/cm ) SG (0.99 at 20°C) VP (1.5 x 10 mmHg at 20°C) UV MAX (236nm). 

Table 77. Some Physical Properties of Tributyl Phosphite...

Physical properties Butyl Dibutyl Tributyl Isobutyl Diisobutyl Trisobutyl Hexyl Cyclohexyl... 

Physical properties Dimethyl Diethyl Dibutyl Dioctyl n-Butyl benzyl Trimethyl Triethyl Tributyl Triphenyl... 

Wright, A. and P. Paviet-Hartmann. 2010. Review of physical and chemical properties of tributyl phosphate/diluent/nitric acid systems. Separation Science and Technology, 45 1753-1762. 

A wide variety of plasticizers are suitable for PVB and PVF resins. For many years, the universally used plasticizer for PVB was triethylene glycol di(2-ethylbutyrate) [95-08-9] (6). More recently this has been supplanted by triethylene glycol di(2-ethylhexanoate) [94-28-0], tetraethylene glycol diheptanoate [70729-68-9], dihexyl adipate [110-33-8], 2-ethylhexyl diphenyl phosphate [1241-94-7], and a variety of other oligomeric ethylene glycol esters and ethers, and other adipate, phosphate, phthalate, sebacate, and ricinoleate esters (19,20,57-62). For PVF, diethyl, diphenyl, and dicyclohexyl phthalates, as well as tributyl, triphenyl, and tricresyl phosphates are useful plasticizers (21). By proper choice of plasticizer type and level, the physical-mechanical, chemical, and adhesion properties of these resins can be tailored for a wide variety of applications (see Plasticizers). 

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