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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:
March-April 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
Flash point apparatus:
Pensky-Martens apparatus
Key result
Flash point:
ca. 80 °C
Atm. press.:
ca. 101 325 Pa

Findings

 Pre-Test for Safety

A bubble chain was observed at 150 °C and the chain broke at 140 °C. The tinge of yellow was more intense after cooling down. No signs of polymerization were visible.

Determination of the Flash Point

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

Table 4.11 -2       Findings

Program

Heating rate (°C/min)

Expected flash point (setting)

in °C

Flash point (found)
in °C

Notes

Search

8.5

140

Up to 120.9°Cno flash point detected but a small flame at the lid of vessel was observed

The plash point tester was stopped

Search

8.5

140

80.6

not used for calculation(pre-test)

EN ISO 2719-B

1.3

80

No flash point found up to100°C

Stop overflow Relative

EN ISO 2719-B

1.3

80

80.0

FP ok

EN ISO 2719-B

1.3

80

No flash point found up to100°C

Stop overflow Relative

EN ISO 2719-B

1.3

90

No flash point found up to110°C

Stop overflow Relative

 

Evaluation and Result

For safety reasons, the lowest value of the quadruplicate determination is given as the flash point. The measured flash point is therefore 80.0°C (corresponding to 353.2 K).

Discussion

The determinations in the main test gave only one value with 80.0 °C. This is attributed to the test item’s properties as a UVCB. Possibly, vaporisation of the single components is poorly detectable, and therefore, just one value for the flash point is measured in the main test but it was similar to the value in the pre-test (80.6°C).

For safety reasons, the lowest measured value (80.0 °C = 353.2 K) is stated as the flash point of the test item.

The determination was considered valid.

Interpretation of results:
Category 4 (combustible liquids) based on GHS criteria
Conclusions:
The flash point of the test item has been determined to be 80.0°C (353.2 K).
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). The flash point of the test item has been determined to be 80.0°C (353.2 K), which is the mean value of two independent valid determinations.

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:
80 °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.