Di(2-ethylhexyl)phthalate DEHP CAS NO.117-81-7

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Bis(2-ethylhexyl) phthalate Basic information
Product Name:    Bis(2-ethylhexyl) phthalate
Synonyms:    1,2-Benzenedicarboxylic acid, bis(2-ethylhexyl) ester;1,2-Benzenedicarboxylic acid, bis(ethylhexyl) ester;1,2-benzenedicarboxylicacid,bis(2-ethylhexyl)ester;1,2-benzenedicarboxylicacid,bis(ethylhexyl)ester;Di(2-ethylhexyl) Phthalate Dioctyl Phthalate Phthalic Acid Bis(2-ethylhexyl) Ester Phthalic Acid Di(2-ethylhexyl) Ester Phthalic Acid Dioctyl Ester DEHP DOP;Bis(2-ethylhexyl)ester phthalic acid;bis-(2-ethylhexyl)esterkyselinyftalove;Bis(ethylhexyl) phthalate
CAS:    117-81-7
MF:    C24H38O4
MW:    390.56
EINECS:    204-211-0

Bis(2-ethylhexyl) phthalate Chemical Properties
Melting point     -50 °C
Boiling point     386 °C(lit.)
density     0.985 g/mL at 25 °C(lit.)
vapor density     >16 (vs air)
vapor pressure     1.2 mm Hg ( 93 °C)
refractive index     n20/D 1.488
Fp     405 °F
storage temp.     2-8°C
solubility     Miscible with mineral oil and hexane (U.S. EPA, 1985)
form     Liquid
color     APHA: ≤10
Odor    Very slight, characteristic.
Water Solubility     Negligible
FreezingPoint     <-60℃

Bis(2-ethylhexyl) phthalate Usage And Synthesis
Uses    Dialkyl phthalate ester plasticizer used to import softness and flexibility to PVC products.
Uses    As plasticizer in PVC applications and flexible vinyls.
Uses    
Bis(2-ethylhexyl) phthalate is commonly used plasticizing agent for PVCs, which as such is a component of blood bank bags, surgical tubing, and other products including food wrappers and children’s toys.

Uses    Bis(2-ethylhexyl) phthalate, known by a variety of other names and usually abbreviated DEHP, was patented in 1950 and first used as vacuum pump oil. But since then, it has become the most widely used plasticizer for poly(vinyl chloride) (PVC) and other plastics. Recently, relatively high levels of DEHP have been found in foods, especially foods high in oils and fats. The U.S. Food and Drug Administration now restricts its use in packaging materials to water-based foods. The European Commission has banned the use of DEHP and other phthalates in PVC toys.
Di(2-ethylhexyl)phthalate (DEHP) is a benzenedicarboxilate ester which is the most widely used plasticizer to soften resins. DEHP is hydrolyzed into what many believe to be its toxic metabolite, mono(2-ethylhexyl)phthalate (MEHP), by lipase enzymes in the gastrointestinal tract.