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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:
19th June 2017 to 27th July 2017
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
other: Commission Regulation (EC) No 440/2008 (as amended) of 30 May 2008
Deviations:
no
Principles of method if other than guideline:
The determination was carried out using a closed cup flash point tester∗, using a procedure designed to be compatible with Method A.9 Flash Point of Commission Regulation (EC) No 440/2008 of 30 May 2008.
Apparatus: Setaflash 30000-0 flash point tester
GLP compliance:
yes (incl. certificate)
Other quality assurance:
ISO/IEC 17025 (General requirements for the competence of testing and calibration laboratories)
Type of method:
closed cup
Flash point apparatus:
Setaflash apparatus
Key result
Flash point:
168 °C
Atm. press.:
101.8 kPa
Conclusions:
The flash point of the test item has been determined to be 168 ± 2 °C.
Executive summary:

4.1 Flash Point

4.1.1 Test System

The determination was carried out using a closed cup flash point tester∗, using a procedure designed to be compatible with Method A.9 Flash Point of Commission Regulation (EC) No 440/2008 of 30 May 2008.

Apparatus: Setaflash 30000-0 flash point tester

4.1.2 Performance of the Test

An aliquot (2 mL for temperatures up to 100 ºC and 4 mL for temperatures above 100 ºC) of the test item was transferred to the sample cup of the Setaflash 30000-0 tester. The sample was heated and allowed to equilibrate at the set temperature. The test flame was introduced into the sample cup for approximately 2½ seconds by sliding the cup shutter open. Observations were made for ignition of the vapor. If no ignition occurred, the temperature was increased and the test flame re-introduced. This was repeated until the lowest reproducible temperature at which a flash occurred, using a fresh sample, was determined.

4.1.3 Evaluation of Data

The flash point is the lowest temperature at 101.3 kPa, at which the test liquid in a closed test vessel evolves vapors, under the conditions defined in the test method, in such amount that a flammable vapor / air mixture was produced in the test vessel.

The flash point was corrected for the atmospheric pressure using the following equation:

Equation 1

Corrected flash point = C + 0.23 (101.325 - p)

where: C = observed flash point (°C) p = ambient atmospheric pressure (kPa)

4.1.4 Results

Results of the flash point determination are shown in the following table:

Table 1

Test Temperature (ºC)

Observations

26.0

No flash.

31.0

No flash.

36.0

No flash.

41.0

No flash.

46.0

No flash.

51.0

No flash.

56.0

No flash.

61.0

No flash.

66.0

No flash.

71.0

No flash.

76.0

No flash.

76.0 (fresh sample)

No flash.

81.0

No flash.

86.0

No flash.

91.0

No flash.

96.0

No flash.

101.0 (fresh sample)

No flash.

106.0

No flash.

111.0

No flash.

116.0

No flash.

121.0

No flash.

126.0

No flash.

131.0

No flash.

136.0

No flash.

141.0

No flash.

146.0

No flash.

151.0

No flash.

151.0 (fresh sample)

No flash.

156.0

No flash.

161.0

No flash.

166.0

No flash.

171.0

A blue/green flash spread across the sample cup.

171.0 (fresh sample)

A blue/green flash spread across the sample cup.

166.0 (fresh sample)

No flash.

167.0 (fresh sample)

No flash.

168.0 (fresh sample)

A blue/green flash spread across the sample cup.

168.0 (fresh sample)

A blue/green flash spread across the sample cup.

166.0 Fresh sample)

No flash.

Atmospheric pressure: 101.8 kPa Observed flash point: 168.0 °C Corrected flash point: 167.9 °C

4.1.5 Conclusion

The flash point of the test item has been determined to be 168 ± 2 °C.

Description of key information

The dermination of the flash point was carried out using a closed cup flash point tester. The procedure was designed to be compatible with Method A.9 Flash Point of Commission Regulation (EC) No 440/2008 of 30 May 2008.

The flash point is the lowest temperature at 101.3 kPa, at which the test liquid in a closed test vessel evolves vapors, under the conditions defined in the test method, in such amount that a flammable vapor / air mixture was produced in the test vessel.

The flash point of the test item has been determined to be 168 ± 2 °C.

Key value for chemical safety assessment

Flash point at 101 325 Pa:
168 °C

Additional information