Diisooctyl phthalate Chemical Properties

Melting point:

-4°C

Boiling point:

435.74°C (rough estimate)

Density 

0.983 g/mL at 25 °C(lit.)

Pour Point 

-46

vapor pressure 

1 mm Hg ( 200 °C)

refractive index 

n20/D 1.486(lit.)

Flash point:

>230 °F

storage temp. 

Refrigerator, under inert atmosphere

solubility 

DMSO (Slightly), Methanol (Slightly, Heated)

form 

Oil

color 

Colourless

Water Solubility 

40ug/L(25 ºC)

LogP

8.516 (est)

CAS DataBase Reference

27554-26-3(CAS DataBase Reference)

NIST Chemistry Reference

1,2-Benzenedicarboxylic acid, diisooctyl ester(27554-26-3)

EPA Substance Registry System

Diisooctyl phthalate (27554-26-3)

Safety Information

Hazard Codes 

Xn,T

Risk Statements 

62-63-61-60

Safety Statements 

23-36/37-24/25-2-45-53

WGK Germany 

1

RTECS 

TI1300000

TSCA 

Yes

Hazardous Substances Data

27554-26-3(Hazardous Substances Data)

Toxicity

mouse,LD50,oral,2769mg/kg (2769mg/kg),Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. Vol. 17(11), Pg. 51, 1973.

MSDS

• Language:English Provider:1,2-Benzenedicarboxylic acid diisooctyl ester
• Language:English Provider:SigmaAldrich

Diisooctyl phthalate Usage And Synthesis

Chemical Properties

The empirical formula of diisooctyl phthalate (DIOP) is C24H38O4. The structural formula of DIOP varies because the iso-alcohols used in the manufacture contain several isomers. DIOP is insoluble in water, but it is soluble in organic solvents.

Uses

Its major use is as a plasticizer.

Uses

Diisooctyl Phthalate can be used as a plasticizer.

Definition

ChEBI: Diisooctyl phthalate is a phthalate ester and a diester.

Production Methods

DIOP is manufactured by the reaction of phthalic anhydride with isooctanol in the presence of an acid catalyst.

General Description

Oily colorless liquid with a slight ester odor. Denser than water. Insoluble in water.

Air & Water Reactions

Insoluble in water.

Reactivity Profile

Diisooctyl phthalate reacts exothermically with acids to generate isooctyl alcohol and phthalic acid. Strong oxidizing acids may cause a vigorous reaction that is sufficiently exothermic to ignite the reaction products. Heat is also generated by interaction with caustic solutions. Flammable hydrogen is generated by mixing with alkali metals and hydrides. Can generate electrostatic charges. [Handling Chemicals Safely, 1980. p. 250].

Health Hazard

Produces no ill effects at normal temperatures but may give off irritating vapor at high temperature.

Fire Hazard

Special Hazards of Combustion Products: None

Diisooctyl phthalate(27554-26-3)Related Product Information

• Potassium hydrogen phthalate
• Benzyl butyl phthalate
• Methyl acrylate
• Diisobutyl phthalate
• Dibutyl phthalate
• Diallyl phthalate
• Bis(2-methoxyethyl) phthalate
• Dimethyl phthalate
• DI-N-OCTYL PHTHALATE
• Phthalic acid
• Diisononyl phthalate
• Diethyl phthalate
• 1,2-Benzenedicarboxylic acid di-C9-11-branched alkyl esters C10-rich
• Tris(trimethylsilyl)phosphate
• PHTHALIC ACID MONOBENZYL ESTER
• DI-N-HEXYL PHTHALATE
• MONOHEXYL PHTHALATE
• Phthaloyl dichloride