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Administrative data

Endpoint:
boiling point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
Experimental starting date: 24 January 2019 Experimental completion date: 08 February 2019
Reliability:
1 (reliable without restriction)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2019
Report date:
2019

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
EU Method A.2 (Boiling Temperature)
Deviations:
no
Qualifier:
according to guideline
Guideline:
OECD Guideline 103 (Boiling Point)
Deviations:
no
GLP compliance:
yes
Type of method:
differential scanning calorimetry

Test material

Constituent 1
Chemical structure
Reference substance name:
3-sec-[C15-18-(branched and linear)-alk-2-enyl]pyrrolidine-2,5-dione
EC Number:
701-350-3
Molecular formula:
Not possible to assign, UVCB
IUPAC Name:
3-sec-[C15-18-(branched and linear)-alk-2-enyl]pyrrolidine-2,5-dione
Test material form:
liquid
Details on test material:
- Appearance: brown liquid
- Storage: room temperature, in the dark
Specific details on test material used for the study:
Identification: X-16151
Appearance/Physical state: dark brown viscous liquid
Batch: R18 13101
Purity: 100% (UVCB)
Expiry date: 02 August 2020
Storage conditions: room temperature, in the dark

Results and discussion

Boiling point
Key result
Boiling pt.:
651 K
Atm. press.:
>= 99 - <= 102 kPa
Decomposition:
no

Any other information on results incl. tables

Results

The thermograms and thermographic data for Determinations 1 to 6 are shown in the Attachment 1 of this Summary.

Applicant's summary and conclusion

Conclusions:
The boiling point of the test item has been determined to be 378 ± 1 °C (651 ± 1 K) at 99 to 102 kPa.
Executive summary:

The determination was carried out by differential scanning calorimetry, using a procedure designed to be compatible with Method A.2 Boiling Temperature of Commission Regulation (EC) No 440/2008 of 30 May 2008 and Method 103 of the OECD Guidelines for Testing of Chemicals,

27 July 1995.

Discussion

The overall boiling point was based on Determinations 3 to 6 using the extrapolated onset value. These determinations used the pre-pierced crucible lid which allows the test item to create a self-generated atmosphere and this significantly reduces evaporation of the test item prior to boiling. Hence the endotherm has a steeper leading edge on which an extrapolating tangent can be more accurately placed.

Due to the desired delay in the endotherm by the pre-pierced crucible lids, the endotherms were not completed by 400 °C. Therefore, the additional determinations up to 450 °C were performed to capture the full profile.

Conclusion

The boiling point of the test item has been determined to be 378 ± 1 °C (651 ± 1 K) at 99 to 102 kPa.

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