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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:
2020-02-03
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
EU Method A.9 (Flash-Point)
Version / remarks:
May 2008
Deviations:
no
Qualifier:
according to
Guideline:
ASTM D93 (Standard test methods for flash point by pensky-martens closed cup tester)
Version / remarks:
19
Deviations:
no
GLP compliance:
yes (incl. certificate)
Type of method:
non-equilibrium method closed cup
Flash point apparatus:
Pensky-Martens apparatus
Key result
Flash point:
59 °C
Atm. press.:
1 013 hPa

The flash point of Dodecane was determined to be 77.5 °C, hardly deviating from the literature value (78.6 °C, ASTM D7094, Table X1.1). For the determination of the initial temperature of flash point measurement a screen test was performed with the test item. The sample was heated from 25 °C using 5.5 °C/min heating rate. Based on this preliminary test the flash point of the test item was determined to be: 58.5 °C. In the course of the study two subsequent tests with the test item were carried out. The measured flash points of the test item were: 58.5 °C and 58.5 °C, resulting in a mean value: 59 °C. The repeatability criterion was met because the maximum difference between replicate determinations was not more than 2 °C.

Interpretation of results:
Category 3 (flammable liquids) based on GHS criteria
Conclusions:
The mean flash-point of the test item was determined to be 59 °C.
Executive summary:

A study was conducted according to Directive 92/69/EEC method A.9, UN Manual of Tests and Criteria Rev.7, 2019, Method 32.4 and OPPTS 830.6315 to determine the flash point of the test item using non-equilibrium closed cup method. For the determination of the initial temperature of flash point measurement a screen test was performed with the test item. The sample was heated from 25 °C using 5.5 °C/min heating rate. Based on this preliminary test the flash point of the test item was determined to be: 58.5 °C. In the course of the study two subsequent tests with the test item were carried out. The measured flash points of the test item were: 58.5 °C and 58.5 °C, resulting in a mean value: 59 °C.

Description of key information

The mean flash-point of the test item was determined to be 59 °C.

Key value for chemical safety assessment

Flash point at 101 325 Pa:
59 °C

Additional information

A study was conducted according to Directive 92/69/EEC method A.9, UN Manual of Tests and Criteria Rev.7, 2019, Method 32.4 and OPPTS 830.6315 to determine the flash point of the test item using non-equilibrium closed cup method. For the determination of the initial temperature of flash point measurement a screen test was performed with the test item. The sample was heated from 25 °C using 5.5 °C/min heating rate. Based on this preliminary test the flash point of the test item was determined to be: 58.5 °C. In the course of the study two subsequent tests with the test item were carried out. The measured flash points of the test item were: 58.5 °C and 58.5 °C, resulting in a mean value: 59 °C.