Dimethyl heptanedioate

Flash point

Link to relevant study record(s)

Reference

Endpoint:

flash point of flammable liquids

Type of information:

experimental study

Adequacy of study:

key study

Study period:

24 Oct. 2017

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Justification for type of information:

The study was conducted according to an internationally recognised method, and under GLP. The substance is considered to be adequately characterised. Therefore full validation applies.

Qualifier:

according to guideline

Guideline:

EU Method A.9 (Flash-Point)

Version / remarks:

2008

Deviations:

no

Qualifier:

according to guideline

Guideline:

EPA OPPTS 830.6315 (Flammability)

Version / remarks:

1996

Deviations:

no

Qualifier:

according to guideline

Guideline:

ISO 2719 (Determination of flash point - Pensky-Martens closed cup method)

Deviations:

no

Principles of method if other than guideline:

Not applicable

GLP compliance:

yes (incl. QA statement)

Remarks:

inspected on October 13 and 14, 2014 / signed on April 08, 2015

Type of method:

non-equilibrium method closed cup

Flash point apparatus:

Pensky-Martens apparatus

Key result

Flash point:

ca. 126.5 °C

Atm. press.:

ca. 101 325 Pa

Findings

Pre-Test for Safety

A small amount of the test item was heated in a test tube in an aluminium block with a Bunsen burner. A boiling chain was observed at 281°C. The chain broke at 273.4 °C. After cooling down no visual changes and no signs for decomposition or polymerisation were visible.

Determination of the Flash Point

The results of the determinations are presented in the following tables.

Table 4.11/2.-   Findings

Program	Expected flash point (setting) in °C	Flash point (found) in °C	Mean in °C	Notes
Search	273	123.6.		not used for calculation(pre-test)
EN ISO 2719-B	124	126.5	126.5	difference < 2°C
EN ISO 2719-B	124	126.5

 

After all test items measurements, the colour of the item had changed to turquoise.

Evaluation and Result

The flash point is given as the mean value of the duplicate determination. The measured flash point is therefore 126.5°C (corresponding to 399.7 K) at 101325 Pa.

Discussion

No difference between the two values was measured therefore the validity criteria of ≤ 2°C is met. For this reason, the determination was considered valid.

 

Interpretation of results:

GHS criteria not met

Conclusions:

The measured flash point is 126.5 °C (corresponding to 399.7 K) at 101325 Pa.

Executive summary:

The flash point of the test substance was determined under GLP according toEU Method A.9 (Flash-Point), using a non-equilibrium closed cup method (ISO2719 -Part B).

No difference between the two values was measured therefore the validity criteria of ≤ 2°C is met. For this reason, the determination was considered valid.

The flash point of the test item has been determined to be 126.5°C (299.7 K), which is the mean value of two independent valid determinations.

Description of key information

The substance is NOT classified as a Flammable Liquid according to Regulation (EC) N°1272/2008 (CLP criteria) and UN Globally Harmonized System (GHS criteria).

Key value for chemical safety assessment

Flash point at 101 325 Pa:

126.5 °C

Additional information

The flash point of the test substance was determined under GLP according to EU Method A.9 (Flash-Point), using a non-equilibrium closed cup method (ISO2719 -Part B).

It is considered as a key study. The result is retained as key data for purpose of CSA.

This study is relevant for the classification regarding flammable properties.