Bis(hydroxyethyl) terephthalate

Flammability

Link to relevant study record(s)

Reference

Endpoint:

flammable solids

Type of information:

experimental study

Adequacy of study:

key study

Reliability:

1 (reliable without restriction)

Qualifier:

according to guideline

Guideline:

EU Method A.10 (Flammability (Solids))

GLP compliance:

yes (incl. QA statement)

Specific details on test material used for the study:

Name BHET
Batch no. AWS0274J
CAS no. 959-26-2
Composition Bis-2-Hydroxy Ethyl Terephthalate (BHET) ~94 wt%;
BHET dimer ~5 wt%; Mono 2-Hydroxy Ethyl
Terephthalate (MHET) <1.0 wt%; 2-Hydroxy Ethyl 2-
(2-Hydroxy Ethoxy)Ethyl Terephthalate <0.5 wt%; Bis-
2-Hydroxy Ethyl Isophthalate (BHEI) <0.1 wt%;
Ethylene Glycol <1.0 wt%; Water <0.2 wt%
Storage room temperature (20 ± 5 °C)
Expiry date 04. Feb. 2023
Stability stable under storage conditions
Appearance White solid
Purity ~95 %
Homogeneity homogeneous
Production date 15. Dec. 2020
EC no. 213-497-6
Molecular formula C12H14O6
Molecular weight 254.24 g/mol
Vapour pressure not stated
Solubility in solvents H2O: > 1 g/L; EtOH: not stated; acetone: not stated;
CH3CN: not stated; DMSO: not stated;
Stability in solvents H2O: not stated; EtOH: unknown; acetone: unknown;
CH3CN: unknown; DMSO: unknown

Key result

Test procedure:

burning rate test: preliminary screening test

Burning time:

0 s

Remarks on result:

substance does not ignite and propagate combustion either by burning with flame or smouldering along 200 mm of the powder train within the 2 minutes test period

Interpretation of results:

not classified based on GHS criteria

Conclusions:

No ignition was observed throughout the course of the test. The test item should be considered as not highly flammable (for EU ) regulations and as non flammable solid (for UN regulations).

Executive summary:

To determine the flammability of the test substance the guidelines of the EU method A10 and the UN Method N.1. were followed. 

In the preliminary screening study the test item just melted. No sign of ignition was observed.

There were no deviations from the study plan or the guideline.

The test substance should be considered as not highly flammable ( for EU regulations) Non flammable solid (for UN regulations)

Description of key information

No ignition was observed throughout the course of the test. This solid test item should be considered as not highly flammable (for EU ) regulations and as non flammable solid (for UN regulations).

Additionally, experience in use and handling shows that the substance is stable in contact with air at room temperature for long periods of time and does not react with water.

Key value for chemical safety assessment

Flammability:

not classified