Di-(2-Ethylhexyl) phthalate (DEHP): Overview
Description
DEHP is a manufactured chemical that makes plastic more flexible. Its primary use is as one of several plasticisers in polyvinyl chloride resins used for fabricating flexible vinyl products. It is used to detect leaks in protective face gear, and as a test material for filtration systems. It has also been reported as being used as a replacement for polychlorinated biphenyls (PCBs) in dielectric fluids for electric capacitors and in vacuum pumps.
Substance details
Substance name: Di-(2-Ethylhexyl) phthalate (DEHP)
CASR number: 117-81-7
Molecular formula: C24H38O4
Synonyms: 2-benzene-dicarboxylate, 2-Ethylhexyl phthalate, BEHP, Bis(2-ethylhexyl)-1, Bis(2-ethylhexyl) ester, Bis(2-ethylhexyl)phthalate, Bisoflex 81, Bisoflex DOP, Compound 889, DAF 68, DEHP, Di(2-ethylhexyl)orthophthalate, Di(2-ethylhexyl)phthalate, Di-sec-octyl phthalate, dioctyl ester, Dioctyl phthalate, DOP, Ergoplast FDO, Ethylhexyl phthalate, Eviplast 80, Eviplast 81, Fleximel, Flexol DOP, Flexol plasticizer DOP, Good-Rite GP 264, Hatcol DOP, Hercoflex 260, Kodaflex DOP, Mollan O, NCI- C52733, Nuoplaz DOP, Octoil, Octyl phthalate, Palatinol AH, Phthalic acid, Pittsburgh PX-138, Platinol DOP, RC Plasticizer DOP, RCRA waste number U028, Reomol D 79P, Reomol DOP, Sicol 150, Silicol 150, Staflex DOP, Truflex DOP, Vestinol AH, Vinicizer 80, Witcizer 312
Physical properties
DEHP is a colourless liquid with almost no odour.
Boiling Point: 230°C at 5 mm Hg
Melting Point: -50°C
Vapour Density: 16
Density/Specific Gravity: 0.9861 at 20/20°C
Vapour Pressure: 1.32 mm Hg at 200°C
Chemical properties
DEHP is insoluble in water, miscible with mineral oil and hexane, and soluble in most organic solvents.
Further information
The National Pollutant Inventory (NPI) holds data for all sources of Di-(2-Ethylhexyl) phthalate emissions in Australia.
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