Dimethyl Phthalate - Materials / Alfa Chemistry

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Dimethyl Phthalate

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Catalog Number

ACMA00016939

Product Name

Dimethyl Phthalate

Category

Polymers

Description

Dimethyl phthalate appears as a water-white liquid without significant odor. Denser than water and insoluble in water. Hence sinks in water. Flash point 300°F. Eye contact may produce severe irritation and direct skin contact may produce mild irritation. Used in the manufacture of a variety of products including plastics, insect repellents, safety glass, and lacquer coatings.;Liquid;COLOURLESS OILY LIQUID.;Colorless, oily liquid with a slight, aromatic odor.;Colorless, oily liquid with a slight, aromatic odor. [Note: A solid below 42°F.]

IUPAC Name

dimethyl benzene-1,2-dicarboxylate

Molecular Weight

194.18g/mol

Molecular Formula

C6H4(COOCH3)2;C10H10O4;C10H10O4

Canonical SMILES

COC(=O)C1=CC=CC=C1C(=O)OC

InChI

InChI=1S/C10H10O4/c1-13-9(11)7-5-3-4-6-8(7)10(12)14-2/h3-6H,1-2H3

InChI Key

NIQCNGHVCWTJSM-UHFFFAOYSA-N

Boiling Point

542.7 °F at 760 mm Hg (NTP, 1992);283.7 °C;283.7 °C at 760 mm Hg;284 °C;543°F;543°F

Melting Point

32 °F (NTP, 1992);5.5 °C;5.5 °C;5.5 °C;32°F;42°F

Flash Point

295 °F (NTP, 1992);295 °F (146 °C) (Closed cup);146 °C c.c.;295°F;295°F

Density

1.1905 at 68 °F (USCG, 1999);1.196 at 15.6 °C/15.6 °C; 1.1940 at 20 °C/20 °C; 1.189 at 25 °C/25 °C;Relative density (water = 1): 1.19;1.19;1.19

Solubility

less than 1 mg/mL at 68° F (NTP, 1992);0.02 M;In water, 4,000 mg/L at 25 °C;Miscible with alcohol, ether, chloroform. Practically insoluble in petroleum ether, and other paraffin hydrocarbons.;Solubility in mineral oil at 20 °C: 0.34 g/100 g;Miscible with ethanol, ethyl ether; soluble in benzene; slightly soluble in carbon tetrachloride;Readily soluble in organic solvents, alcohols, esters, ketones, chlorinated hydrocarbons. Slightly soluble in some types of mineral oil.;Solubility in water, g/100ml at 20 °C: 0.43;0.4%

Color/Form

Pale yellow;Colorless, oily liquid [Note: A solid below 42 degrees F]

Complexity

200

Covalently-Bonded Unit Count

EC Number

205-011-6

Exact Mass

194.057909g/mol

Formal Charge

Heat of Vaporization

93.1 g-cal/g

Heavy Atom Count

ICSC Number

0261

Log P

1.6 (LogP);log Kow = 1.60;1.47/2.12

MeSH Entry Terms

dimethyl phthalate;dimethyl phthalate, conjugate diacid;dimethylphthalate

Monoisotopic Mass

194.057909g/mol

NSC Number

15398

Odor

Slight aromatic odor

Other Experimental

VOLATILITY: 4.0 MG/SQ CM/HR AT 100 °C;WEIGHT/VOLUME CONVERSION: 7.93 MG/CU M= APPROX 1 PPM;The release time of the repellent chemical ... dimethyl phthalate ... from porous propylene slabs was much higher (approx 7 times more) than from porous propylene powders. The release time was a function of the initial concn and was inversely proportional to vapor pressure in case of porous powder. /Former US/;BP: 232.7 °C at 200 mm Hg; 210.0 °C at 100 mm Hg; 194.0 °C at 60 mm Hg; 182.8 °C at 40 mm Hg; 164.0 °C at 20 mm Hg; 147.6 °C at 10 mm Hg; 131.8 °C at 5 mm Hg; 100.3 °C at 1.0 mm Hg;The commercial product freezes at approximately 0 °C.;VP: <0.01 mm Hg at 20 °C;Bulk density 9.93 lb/gal at 68 °F.;Readily hydrolyzed by alkalis, with cleavage of both ester groups.;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 = 1.97X10-7 cu cm/molec-sec at 25 °C (est);Hydroxyl radical reaction rate constant = 5.74X10-13 cu cm/molec-sec at 25 °C (est)

Refractive Index

Index of refraction: 1.5168 at 20 °C/D

Rotatable Bond Count

RTECS Number

TI1575000

Stability

Stable under recommended storage conditions.

UNII

08X7F5UDJM

UN Number

3082;3082

Vapor Density

6.69 (NTP, 1992) (Relative to Air);6.69 (Air = 1);Relative vapor density (air = 1): 6.69;6.69

Vapor Pressure

1 mm Hg at 212.5 °F ; 5 mm Hg at 269.2° F; 10 mm Hg at 297.7° F (NTP, 1992);0.00 mmHg;3.08X10-3 mm Hg at 25 °C /from experimentally-derived coefficients/;Vapor pressure, Pa at 20 °C: 0.8;0.01 mmHg;0.01 mmHg

Viscosity

17.2 cP at 25 °C

XLogP3

1.6

MSDS

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COA

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Spec Sheet

Download Spec Sheet

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