Resin acids and Rosin acids, esters with trimethylolpropane

Boiling point

Link to relevant study record(s)

Reference

Endpoint:

boiling point

Type of information:

experimental study

Adequacy of study:

key study

Study period:

03 May 2017 - 20 June 2017

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

EU Method A.2 (Boiling Temperature)

Deviations:

no

Qualifier:

according to guideline

Guideline:

EPA OPPTS 830.7220 (Boiling Point / Boiling Range)

Deviations:

no

Qualifier:

according to guideline

Guideline:

OECD Guideline 103 (Boiling Point)

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Type of method:

differential scanning calorimetry

Specific details on test material used for the study:

SOURCE OF TEST MATERIAL
- Batch No.of test material:
AN-0400-105
- Expiration date of the lot/batch:
01 January 2019
- Purity : 100% (UVCB)

STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage condition of test material:
Approximately -20°C, under nitrogen, in the dark

Key result

Boiling pt.:

418 °C

Atm. press.:

100.9 kPa

Remarks on result:

other: ± 0.5°C

- After heating to 450 °C, the samples had lost approximately 84% and 71% of their original weight for Determinations 1 and 2 respectively.

- The residue was a yellow solid around the periphery of the crucible.

Conclusions:

The boiling point of the test substance was determined to be 418 ± 0.5°C (691 ± 0.5 K) at 100.9 kPa.

Executive summary:

The boiling point of the test substance, Resin acids and Rosin acids, esters with trimethylolpropane was determined via by differential scanning calorimetry using a procedure compatible with Method A.2 Boiling Temperature of Commission Regulation (EC) No. 440/2008 (30 May 2008), Method 103 of the OECD Guidelines for Testing of Chemicals (27 July 1995) and Method 830.7720 of the OCSPP Guidelines (August 1996).

The temperature accuracy of the DSC instrument was checked with indium and zinc prior to testing and was found to be within the defined tolerances and therefore considered acceptable for use. Aliquots of test item were placed in pierced crucibles and were subjected to a thermal programme from 250 - 450°C at 20°C/min.

Based on the evaluation criteria where the extrapolated onset point of the relevant endothermic peak is usually stated as the boiling point, the boiling point of the test substance was determined to be 418 ± 0.5°C (691 ± 0.5K) at an atmospheric pressure of 100.9 kPa.

Description of key information

The boiling point of Resin acids and Rosin acids, esters with trimethylolpropane was determined via by differential scanning calorimetry using a procedure compatible with Method A.2 Boiling Temperature of Commission Regulation (EC) No. 440/2008 (30 May 2008); Method 103 of the OECD Guidelines for Testing of Chemicals (27 July 1995); and Method 830.7720 of the OCSPP Guidelines (August 1996).

Based on the evaluation criteria where the extrapolated onset point of the relevant endothermic peak is usually stated as the boiling point, the boiling point of the test substance was determined to be 418 ± 0.5°C (691 ± 0.5K) at an atmospheric pressure of 100.9 kPa.

Key value for chemical safety assessment

Boiling point at 101 325 Pa:

418 °C