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Physical & Chemical properties

Flash point

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Reference
Endpoint:
flash point of flammable liquids
Type of information:
experimental study
Adequacy of study:
key study
Study period:
From 7 to 10 Mars 2016
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:
EU Method A.9 (Flash-Point)
Deviations:
no
Qualifier:
according to
Guideline:
EPA OPPTS 830.6315 (Flammability)
Deviations:
no
Qualifier:
according to
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. certificate)
Remarks:
inspected on October 13 and 14, 2014 / signed on April 08, 2015
Type of method:
non-equilibrium method closed cup
Key result
Flash point:
ca. 84.5 °C
Atm. press.:
ca. 101 325 Pa

Findings

Pre-Test for Safety

A bubble chain was observed at 236 °C. The bubble chain broke at 198 °C. After cooling down, the test item became slightly more yellow. No signs of 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

198

88.7

 

not used for calculation(pre-test)

EN ISO 2719-A

88

84.5

84.5

difference < 2°C

EN ISO 2719-A

88

87.5

EN ISO 2719-A

88

84.5

The value in italic was not used for evaluation as the test was affected by draught of the closed fume hood.

Evaluation and Result

The flash point is given as the mean value of the first and third determination. The measured flash point is therefore 84.5°C (corresponding to 357.7 K).

Discussion

The second determination was not considered valid as the deviation was more than 2°C due to draught caused by the fume hood closing automatically during the experiment. The experiment was then repeated again with the fume hood opened to avoid draught. No difference between the values of the first and third experiment was observed. For this reason, these two determinations were considered valid.

No observations were made which might cause doubts on the validity of the study outcome.

Interpretation of results:
Category 4 (combustible liquids) based on GHS criteria
Conclusions:
The flash point of the test item has been determined to be 84.5°C (357.7K).
Executive summary:

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 A).

First, a safety test was performed: A bubble chain was observed at 236 °C. The bubble chain broke at 198 °C. After cooling down, the test item became slightly more yellow. No signs of polymerisation were visible.

Then, a pre-test and a main study with three experiments were performed.The flashpoint value is the mean value of two independent valid determinations.

 The flash point of the test item has been determined to be 84.5°C (357.7K).

The flash point of test substance is above the classification thresholds of 60°C of the Regulation (EC) No. 1272/2008 (CLP criteria) and lower than 93°C, the threshold of the UN Globally Harmonised System (GHS).

Therefore the test substance is NOT classified as a flammable liquid according to CLP criteria but is classified as a Flammable Liquid Category 4 according to UN Globally Harmonised System (GHS).

Description of key information

The substance is NOT classified as a flammable liquid according to Regulation (EC) N°1272/2008 (CLP criteria).

The substance is classified as Flammable Liquid Category 4 according to UN Globally Harmonized System (GHS criteria).

Key value for chemical safety assessment

Flash point at 101 325 Pa:
84.5 °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 A).

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.