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Diss Factsheets

Physical & Chemical properties

Endpoint summary

Administrative data

Description of key information

Data for the physico-chemical properties were provided based on studies for the following endpoints: melting and boiling points, relative density, vapour pressure, partition coefficient, water solubility, flash point, auto-flammability and viscosity.

The results of the studies are reported in the endpoint summary as well as in the accompanying IUCLID database. Data for several endpoints were waived due to intrinsic properties or based on the criteria as laid down in regulation (EC) 1907/2008 Annex VII/IX column 2 or Annex XI.

The substance is a colourless limpid liquid at ambient temperature, with low volatility.

In water it is very slightly soluble, slightly less dense, with no surface-active properties. No dissociation of the parent compound is anticipated under environmental conditions.

The partition coefficient was estimated to be > 6.

It is NOT classified as dangerous with regard to physical hazards, based on CLP criteria.

It should be noted that slight variations of the properties could be observed within the purity or isomers composition range.

Additional information

Summary of relevant physico-chemical properties:

Endpoint (method)

Data

Appearance 

(visual)

Colourless limpid liquid.

Melting point

(OECD102/EU A1, DSC)

range: -60°C to -20°C

Boiling point

(OECD103, DSC)

373°C

Relative density

(ISO 12185, Oscillating densitimeter)

0.921 kgdm3 (or 921 g/L)

Vapour pressure

(OECD104, TGA)

1.97E-04 Pa at 20°C

Partition coefficient

(calculation)

Log Kow>6

Water solubility

(OECD105, EU A6, flask method)

1.055 µg/L at 20°C ( pH ca 7.2)

Surface tension

(data waiving)

not necessary because wsol < 1mg/L

Flammability:

 

Flash Point

__(ASTM D6450 -16, closed cup)

201°C 

Auto-Ignition Temperature

  (EU A15)

381°C

Contact with air or water

  (data waiving, based on chemical structure and experience)

No pyrophoric properties expected, or release of flammable gas.

Self-heating

  (data waiving, liquid)

Unlikely for liquids (method not applicable)

Explosive properties

(data waiving, based on chemical structure)

No potential. 

Oxidising properties

(data waiving, based on chemical structure)

No potential.

 

Stability in organic solvents 

  (data waiving, based on chemical structure and experience)

Not considered to be critical. No instability observed when testing.

Dissociation constant

(data waiving, based on chemical structure)

Not relevant: no ionic structure (esters)

Viscosity

(OECD114, rotational viscometer)

22.3 mPa.s at 20°C

10.9 mPa.s at 40°C