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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
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
EU Method A.9 (Flash-Point)
GLP compliance:
yes (incl. certificate)
Type of method:
closed cup
Flash point apparatus:
Abel apparatus
Dynamic viscosity of test material:
Viscosity determination of the test item at 20 °C  dynamic viscosity*:  3.64 mPa*s
* calculated with a density of the test item of p = 0.8618 g/cm³

Viscosity determination of the test item at 40°C: dynamic viscosity:  1.76 mPa*s
* calculated with a density of the lest item of p = 0.8411 g/cm³
Key result
Flash point:
19 °C
Atm. press.:
1 013.25 hPa

Results

Test

Flash point

In °C

Initial test

20.0

1strun *

19.1

2ndrun *

19.1

*Corrected flash point

Tue flashpoint of the test substance is 19.0 °C

Description of key information

The flash point of the substance is determined to be 19.0 °C, closed cup method.

Key value for chemical safety assessment

Flash point at 101 325 Pa:
19 °C

Additional information

A GLP study was conducted according to Regulation (EC) No 440/2008, Annex A.9. The BASF GLP study no. SIK 16/1942 determined the flash point to be 19.0 °C at 1013.25 hPa.

This result is supported by an older study (SIK 68/0022) which reported the flash point to be 22°C and some literature sources. Sax's Dangerous Properties of Industrial Materialsr eported the flash point to be below 21 °C and Knovel Solvents - A Properties Database reported the flash point to be 22 °C.

All values are very close to the Classification limit for flammable liquiids. Therefoe it was decided to have a new study to clarify this.

The new study lead into the following classification:

R11 (highly flammable) of EU Directive 67/548/EEC: flash point <= 21 °C and initial boiling point > 35 °C;

Flammable liquids, Category 2 (highly flammable liquids and vapour) of EU CLP: flash point <= 23 °C and initial boiling point > 35 °C