Catalog Number
ACMA00016941
Product Name
Dimethyl Terephthalate
Description
Dimethyl terephthalate appears as white solid or heated colorless liquid. Has no odor. Liquid solidifies in cool water. Solid and liquid sink in water. (USCG, 1999);DryPowder; DryPowder, OtherSolid; OtherSolid; PelletsLargeCrystals;WHITE FLAKES.
IUPAC Name
dimethyl benzene-1,4-dicarboxylate
Molecular Weight
194.18g/mol
Molecular Formula
C6H4(COOCH3)2;C10H10O4;C10H10O4
Canonical SMILES
COC(=O)C1=CC=C(C=C1)C(=O)OC
InChI
InChI=1S/C10H10O4/c1-13-9(11)7-3-5-8(6-4-7)10(12)14-2/h3-6H,1-2H3
InChI Key
WOZVHXUHUFLZGK-UHFFFAOYSA-N
Boiling Point
572 °F at 760 mm Hg (sublimes) (NTP, 1992);288.0 °C;288 °C;288 °C
Melting Point
284 to 288 °F (NTP, 1992);141.0 °C;141 °C;140 °C
Flash Point
308 °F (NTP, 1992);146 °C OC;308 °F (153 °C) (Open cup);141 °C c.c.
Density
1.2 at 68 °F 1.08 at 145°C (liquid) (USCG, 1999);1.075 g/cu cm at 141 °C;1.2 g/cm³
Solubility
less than 1 mg/mL at 55° F (NTP, 1992);9.78e-05 M;Soluble in ether and hot alcohol;Soluble in chloroform; slightly soluble in ethanol. methanol;0.3 G/ML IN HOT WATER;In water, 19 mg/L at 25 °C;Solubility in water at 13 °C: very poor
Color/Form
Colorlesss crystals;NEEDLES FROM ETHER
Covalently-Bonded Unit Count
1
Exact Mass
194.057909g/mol
Log P
2.25 (LogP);log Kow = 2.25;2.35
MeSH Entry Terms
dimethyl 4-phthalate;dimethyl p-phthalate;dimethyl terephthalate;dimethylterephthalate
Monoisotopic Mass
194.057909g/mol
Other Experimental
Sublimes above 300 °C;Liquid molar volume = 0.180564 cu m/kmol (determined at triple point);Heat of fusion at melting point = 3.1630X10+7 J/kmol;VAPOR PRESSURE = 16 MM HG @ 100 °C;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 = 1.34X10-4 atm-cu m/mol at 25 °C (est);Hydroxyl radical reaction rate constant = 5.74X10-13 cu cm/molec-sec at 25 °C (est)
Vapor Density
6.7 (NTP, 1992) (Relative to Air);Relative vapor density (air = 1): 5.5
Vapor Pressure
16 mm Hg at 212 °F ; 140 mm Hg at 302° F (NTP, 1992);0.01 mmHg;1.06X10-2 mm Hg at 25 °C;Vapor pressure, Pa at 2.5 °C: 1.4
Viscosity
Liquid viscosity = 1.0682X10-3 Pa.s
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