Product Name
Dihexyl Phthalate
Category
Plastic Additives; Plasticizers
Synonyms
Phthalic Acid Dihexyl Ester
Description
Di-n-hexyl phthalate is a yellow-brown oily viscous liquid with a slight aromatic odor. Insoluble in water. (NTP, 1992);Liquid;Yellow-brown oily viscous liquid with a slight aromatic odor.
IUPAC Name
dihexyl benzene-1,2-dicarboxylate
Molecular Formula
C20H30O4
Canonical SMILES
CCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCC
InChI
InChI=1S/C20H30O4/c1-3-5-7-11-15-23-19(21)17-13-9-10-14-18(17)20(22)24-16-12-8-6-4-2/h9-10,13-14H,3-8,11-12,15-16H2,1-2H3
InChI Key
KCXZNSGUUQJJTR-UHFFFAOYSA-N
Melting Point
-72 °F (NTP, 1992);-58.0 °C;-58 °C;-72°F
Density
0.995 at 68 °F (NTP, 1992);1.010-1.016 at 20 °C/20 °C;0.995
Solubility
Insoluble (NTP, 1992);1.49e-07 M;In water, 0.05 mg/L at 25 °C
Color/Form
Clear, oily liuid
Covalently-Bonded Unit Count
1
Exact Mass
334.214409g/mol
Log P
6.82 (LogP);log Kow = 6.82
MeSH Entry Terms
di-n-hexyl phthalate;dihexyl phthalate;phthalic acid dihexyl ester
Monoisotopic Mass
334.214409g/mol
Other Experimental
CONVERSION FACTORS: 13.65 MG/CU M= APPROX 1 PPM;Acidity (as phthalic acid) 0.01% max;Phthalate esters are soluble to various extents in many common organic solvents and oils, but have a relatively low solubility in water. /Phthalate esters/;Phthalate esters would be expected to have UV maxima in the 230 nm and 270 nm regions. /Phthalate esters/;... Resistance to migration from polymers, low temperature flexibility ... compatibility with polar polymers and additives over a wide range of compositions. /Phthalate esters/;Henry's Law constant = 2.57X10-5 atm-cu m/mol at 25 °C (est);Hydroxyl radical reaction rate constant = 1.49X10-11 cu cm/molec-sec at 25 °C (est)
Vapor Density
11.5 (NTP, 1992) (Relative to Air);11.5 (Air = 1);11.5
Vapor Pressure
1.40e-05 mmHg;1.4X10-5 mm Hg at 25 °C