Di- n -octyl phthalate

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Structural formula
Structure of di-n-octyl phthalate
General
Surname Di- n -octyl phthalate
other names
  • Dioctyl phthalate
  • Di- n -octyl phthalate
  • DNOP
  • DOP (ambiguous)
  • Dioctyl orthophthalate
Molecular formula C 24 H 38 O 4
Brief description

colorless, odorless, oily liquid

External identifiers / databases
CAS number 117-84-0
EC number 204-214-7
ECHA InfoCard 100.003.832
PubChem 8346
ChemSpider 8043
Wikidata Q908490
properties
Molar mass 390.56 g mol −1
Physical state

liquid

density

0.98 g cm −3

Melting point

−49 ° C

boiling point

385 ° C

Vapor pressure

1 Pa (20 ° C)

solubility

practically insoluble in water

safety instructions
GHS labeling of hazardous substances
07 - Warning

Caution

H and P phrases H: 319
P: 305 + 351 + 338
Toxicological data

53.7 g kg −1 ( LD 50ratoral )

As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Di- n -octyl phthalate (often imprecise dioctyl phthalate) is an organic chemical compound from the group of phthalates ( esters of phthalic acid ), which is mainly used as a plasticizer . It is a colorless, odorless, oily liquid and a structural isomer of diethylhexyl phthalate (DEHP).

Extraction and presentation

Di- n -octylphthalate is obtained by reacting phthalic anhydride with octanol in the presence of a catalyst .

properties

Di- n -octyl phthalate is a colorless odorless liquid which is practically insoluble in water.

use

Di- n -octyl phthalate is used as a plasticizer (e.g. for PVC), a component of anti-foaming agents , solvents and as a paint resin and is used for applications in the cosmetics industry, in the medical sector and in the explosives industry. It is also used in the production of test aerosols .

safety instructions

DNOP must not be used as a plasticizer for toys and baby items that children can put in their mouths because the substance is listed in Appendix 1 of the Consumer Goods Ordinance .

Web links

Individual evidence

  1. a b c d e f Entry for CAS no. 117-84-0 in the GESTIS substance database of the IFA , accessed on September 26, 2007(JavaScript required) .
  2. a b c data sheet of the National Toxicology Program English ( Memento of July 23, 2009 in the Internet Archive ).
  3. a b Data sheet di-n-octyl phthalate from Sigma-Aldrich , accessed on May 25, 2011 ( PDF ).
  4. VDI 3491 sheet 2: 2017-01 measurement of particles; Manufacturing process for test aerosols; Dispersion of liquids (Measurement of particles; Methods for generating test aerosols; Dispersing liquids). Beuth Verlag, Berlin, p. 34.
  5. ^ Vittorio Prodi, Carlo Melandri, Giuseppina Maltoni Giacomelli: Size spectrometry of DOP particles using low-temperature deposition and replica technology. In: Dust - cleanliness. Air . 30, No. 3, 1970, pp. 123-126.