3648-20-2

Basic information

• Product Name: Diundecyl phthalate
• Synonyms: 1,2-Benzenedicarboxylicacid,diundecylester;di(heptyl,undecyl)phthalate(branchedandlinearisomers);di-711-phthalate;Diundecyl linear phthalate;diundecylphthalate(branchedandlinearisomers);diundecylphthalate(dup);DUP;Jayflex DUP
• CAS NO: 3648-20-2
• Molecular Formula: C₃₀H₅₀O₄
• Molecular Weight: 474.72
• EINECS: 222-884-9
• Mol File: 3648-20-2.mol
• Article Data: 1

Chemical Properties

• Melting Point: 2°C
• Boiling Point: 523 °C(lit.)
• Flash Point: 241 °C
• Appearance: /
• Density: 0.95 g/mL at 25 °C(lit.)
• Vapor Pressure: 4.22E-09mmHg at 25°C
• Refractive Index: n20/D 1.48(lit.)
• Storage Temp.: -20°C
• Solubility: Chloroform (Slightly), Ethyl Acetate (Slightly)
• Water Solubility: 11.7mg/L at 20℃
• CAS DataBase Reference: Diundecyl phthalate(CAS DataBase Reference)
• NIST Chemistry Reference: Diundecyl phthalate(3648-20-2)
• EPA Substance Registry System: Diundecyl phthalate(3648-20-2)

Safety Data

• WGK Germany: 1
• Hazardous Substances Data: 3648-20-2(Hazardous Substances Data)

Usage

Chemical Properties

Pale Yellow Oil

Uses

Diundecyl Phthalate is a phthalate diester and has been investigated for its toxicology in male rats for risk assessment.

Production Methods

DUP is manufactured by the reaction of phthalic anhydride with undecanol in the presence of an acid catalyst.

General Description

Oily colorless odorless liquid. Less dense than water.

Air & Water Reactions

Insoluble in water.

Reactivity Profile

Diundecyl phthalate reacts with acids to liberate heat along with alcohols and acids. 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].

Fire Hazard

Diundecyl phthalate is probably combustible.

Flammability and Explosibility

Notclassified

InChI:InChI=1/C30H50O4/c1-3-5-7-9-11-13-15-17-21-25-33-29(31)27-23-19-20-24-28(27)30(32)34-26-22-18-16-14-12-10-8-6-4-2/h19-20,23-24H,3-18,21-22,25-26H2,1-2H3

Relevant articles and documents

Process for producing carboxylic acid esters and catalysts therefor

A process for producing carboxylic acid esters by the following steps: a) preparation of a reaction mixture containing an alcohol and a carboxylic acid and/or a carboxylic anhydride and/or a carboxylic acid ester and or a partially esterified carboxylic acid, b) heating of this mixture to the suitable reaction temperature in the presence of a solid polysiloxane insoluble in the reaction medium and having sulphonic acid groups with intensive thorough mixing accompanied by continuous separation of the reaction water which forms, wherein the polysiloxane used as the catalyst in modified by treatment with a soluble aluminum, titanium or zirconium compound, and the spherical particles thereof have a diameter of 0.01 to 3 mm, a specific surface of 0.1 to 1200 m2 /g, a specific pore volume of 0.01 to 6.0 ml/g and a bulk density of 50 to 1000 g/l.