Reaction mass of (((1,3-phenylenebis(oxy))bis(ethane-2,1-diyl))bis(oxy))bis(ethane-2,1-diyl) bis(2-methylacrylate) and (1,3-phenylenebis(oxy))bis(propane-3,1-diyl) bis(2-methylacrylate) and 3-(3-(2-(2-(methacryloyloxy)ethoxy)ethoxy)phenoxy)propyl methacrylaterate

Boiling point

Administrative data

Endpoint:

boiling point

Type of information:

experimental study

Adequacy of study:

key study

Study period:

04 Sep 2019

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2020

Report date:

2020

Materials and methods

Test guideline

Qualifier:

according to guideline

Guideline:

OECD Guideline 103 (Boiling Point)

GLP compliance:

yes

Type of method:

differential scanning calorimetry

Test material

Test material information

Constituent 1

Reference substance name:

Reaction mass of (((1,3-phenylenebis(oxy))bis(ethane-2,1-diyl))bis(oxy))bis(ethane-2,1-diyl) bis(2-methylacrylate) and (1,3-phenylenebis(oxy))bis(propane-3,1-diyl) bis(2-methylacrylate) and 3-(3-(2-(2-(methacryloyloxy)ethoxy)ethoxy)phenoxy)propyl methacrylaterate

EC Number:

944-271-1

Cas Number:

2305048-54-6

Molecular formula:

not applicable for multi-constituent.

IUPAC Name:

Reaction mass of (((1,3-phenylenebis(oxy))bis(ethane-2,1-diyl))bis(oxy))bis(ethane-2,1-diyl) bis(2-methylacrylate) and (1,3-phenylenebis(oxy))bis(propane-3,1-diyl) bis(2-methylacrylate) and 3-(3-(2-(2-(methacryloyloxy)ethoxy)ethoxy)phenoxy)propyl methacrylaterate

Specific details on test material used for the study:

SOURCE OF TEST MATERIAL
- Lot/batch number of test material: 653940
- Purity, including information on contaminants, isomers, etc.: 100% UVCB (45.11% DiBrOE2RMA; 32.31% DiBrORMA; 15.24% DiBrE4RMA)
- Expiration date: February 2020

STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage condition of test material: Stored at room temperature in a dark, ventilated cabinet in the original container

Results and discussion

Boiling point

Key result

Atm. press.:

760 mm Hg

Decomposition:

yes

Decomp. temp.:

>= 359 - <= 372 °C

Any other information on results incl. tables

Sample Type	Weight of Sample (mg)	Onset Temp (°C)
Definitive, 5 °C/min	2.831	359.48
Definitive, 5 °C/min	1.331	359.17
Definitive, 5 °C/min	2.705	358.51
Mean:		359.05
SD:		0.495
% RSD:		0.138%
Definitive, 10 °C/min	6.104	373.83
Definitive, 10 °C/min	1.942	368.18
Definitive, 10 °C/min	2.033	373.99
Mean:		372.00
SD:		3.31
% RSD:		0.890%

The onset point of the exotherm was observed to be a kinetic event dependent on the heating rate and attributed to decomposition rather than a boiling phase transition. The material was visually observed to have been converted to a black tar. This is typical for substances that undergo decomposition during DSC analysis.

Applicant's summary and conclusion

Conclusions:

The decomposition range of DiBrORMA was determined to be between 359 °C and 372 °C (OECD 103).

Executive summary:

The decomposition temperature was determined by the differential scanning calorimetry (DSC). During the heating processes the material was visually observed to have been converted to a black tar. Due the difference in onset point when heating at 5 °C/minute and 10 °C/minute, the onset point was also determined to be kinetic dependent on the heating rate. The study was conducted in accordance with OECD 103 method and GLP compliant. Therefore, the study is considered reliable without restrictions.