Standard plasticizer for PVC.

Good general properties for processing and applications.

Plasticizer for cellulose coatings, cellulose acetate butyrate, as well as dispersions.


Chemical nature                             :    Phthalic acid dioctyl ester, di-2-ethylhexyl phthalate, dioctyl phthalate.

Molecular formula                                :    C24 H38O4

CAS Number                                          :    117-81-7

EC-Number                                            :    204-211-0

Abbreviations (DIN ENISO 1043-3) :    DOP (DEHP)


Delivery specification

* These properties are not measured routinely

** Calculated by multiplying the measured kinematic viscosity (DIN 51562) with the density

*** See GC conditions. (General information on gas chromatography is given , e. g. in Lit [1]).


Our DOP is a nearly colourless, clear and practically anhydrous liquid with a hardly noticeable odour. It is soluble in the usual organic solvents and is miscible and compatible with all of the monomeric plasticizers commonly used in PVC. our DOP is almost insoluble in water.


The following physical data were measured in the our company’s

laboratories. They do not represent any legally-binding guarantee of properties for our sales product.

(The Antoine constants were determined from vapour pressure data measured in the temperature range of 100 to 300 °C by a dynamic method in an argon atmosphere. The values in the table were calculated using the Antoine equation. The data serve only as a rough guide.)

* Calculated using the following equation: r= (– 0.00074T + 0.9994) from data

(r= Density in g/cm3,T = Temperature in °C)

 Solution temperature at the clear point:   124 °C (5 % S-PVC; K value 71; method based on DIN 53408)


Specific heat Cr                :  1.69 –1.91 J/gK range of 20 °C to 100 °C (calculated from literature data).

Surface tension at 20°C : 31.1 mN/m (DIN EN14370)

Analytical data
Gas chromatography

The following conditions have been established in practice for the chromatographic assay:



Our DOP can be stored in suitable containers at temperatures below 40 °C and the exclusion of humidity for at least 1 year.


When using this product; the information and advice given in our Safety Data Sheet should be observed. Due attention should also be given to the precautions necessary for handling chemicals.


The data contained in this publication is based on our current knowledge and experience. In view of the many factors that may affect processing and application of our product, these data do not relieve processors from carrying out their own investigations and tests; neither do these data imply any guarantee of certain properties, nor the suitability of the product for

a specific purpose. Any descriptions, drawings, photographs, data, pro- portions, weights etc. given herein may change without prior information and do not constitute the agreed contractual quality of the product. It is the responsibility of the recipient of our products to ensure that any proprietary rights and existing laws and legislation are observed.