Phosphoric acid, butyl ester, branched, compd. with 2-ethyl-N-(2-ethylhexyl)-1-hexanamine

Vapour pressure

Administrative data

Endpoint:

vapour pressure

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2017-11-21 - 2017-11-29

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2017

Report date:

2017

Materials and methods

Test guideline

Test guideline 1

Qualifier:

according to guideline

Guideline:

EU Method A.4 (Vapour Pressure)

Version / remarks:

Test method A.4. "Vapour pressure" as described in the Council Regulation (EC) No 440/2008 of 30 May 2008 laying down test methods pursuant to Regulation (EC) No 1907/2006 of the European Parliament and of the Council on the Registration, Evaluation, Authorization and Restriction of Chemicals (REACH)

Deviations:

no

Test guideline 2

Qualifier:

equivalent or similar to guideline

Guideline:

OECD Guideline 104 (Vapour Pressure Curve)

Version / remarks:

similar to the test method OECD Guideline 104 "OECD Guideline For The Testing Of Chemicals, adopted by the Council on 23 March 2006, Vapour Pressure"

Deviations:

not applicable

GLP compliance:

yes

Type of method:

other: Differential Scanning Calorimetry (DSC)

Test material

Test material information

Constituent 1

Reference substance name:

Phosphoric acid, butyl ester, branched, compd. with 2-ethyl-N-(2-ethylhexyl)-1-hexanamine

EC Number:

308-859-6

EC Name:

Phosphoric acid, butyl ester, branched, compd. with 2-ethyl-N-(2-ethylhexyl)-1-hexanamine

Cas Number:

98679-19-7

Molecular formula:

not applicable (UVCB substance)

IUPAC Name:

Phosphoric acid, butyl ester, branched, compd. with 2-ethyl-N-(2-ethylhexyl)-1-hexanamine

Test material form:

liquid

Remarks:

yellow

Results and discussion

Vapour pressure

Key result

Temp.:

20 °C

Vapour pressure:

< 6.7 Pa

Remarks on result:

not determinable because of methodological limitations

Remarks:

The experimentally determined vapour pressure of the test item at 20°C of <<1 mbar (2.7*10E-4 mbar) is not in the recommended range of 1 to 1000 mbar for DSC-measurements.

Vapour pressure at 50°C (if relevant for classification of gas under pressure)

Vapour pressure:

< 64 Pa

Remarks on result:

other: Calculation is based on the lowest possible boiling temperature (Grain Watson estimation).

Applicant's summary and conclusion

Conclusions:

The study was performed according to EU method A.4 under GLP on the substance to be registered itself, the test procedure is well documented and therefore reliability of Klimisch 1 has been assigned. The test item Amine neutralized phosphoric acid butyl esters has a vapour pressure of 6.6*10E-5 atm (< 6.7 Pa; <6.7*10E-2 mbar) at 20 °C and of < 6.3*10E-4 atm (< 64 Pa; 6.4* 10E-1 mbar) at 50°C (the calculation is based on the lowest possible boiling temperature) (Grain Watson estimation). The experimentally determined vapour pressure of the test item Amine neutralized phosphoric acid butyl esters at 20°C of << 1 mbar is not in the recommended range of 1 to 1000 mbar for DSC measurements.

Executive summary:

Amine neutralized phosphoric acid butyl esters has a vapour pressure of 6.6*10E-5atm (< 6.7 Pa; <6.7*10E-2 mbar) at 20 °C and of < 6.3*10E-4 atm (< 64 Pa;6.4* 10E-1mbar) at 50°C(calculated), determined in a study according to EU method A.4 under GLP using DSC measurements.