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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:
2013-09-05
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study with acceptable restrictions
Remarks:
study was conducted in accordance with EU Method A.9 but not in compliance with relevant quality management system.
Qualifier:
according to guideline
Guideline:
EU Method A.9 (Flash-Point)
Deviations:
no
Qualifier:
according to guideline
Guideline:
ISO 3679 (Determination of flash point - Rapid equilibrium closed cup method)
Version / remarks:
2004
Deviations:
no
Qualifier:
according to guideline
Guideline:
ISO 3680 (Determination of flash/no flash - Rapid equilibrium closed cup method)
Deviations:
no
GLP compliance:
no
Type of method:
equilibrium method closed cup
Flash point apparatus:
Setaflash apparatus
Key result
Flash point:
106.5 °C
Atm. press.:
1 013 hPa

Preliminary test:

The results of the preliminary measurements and temperatures where ignition (+) was detected and no ignition (-) detected are reported in the table below.

Test item (mL)

Temperature (°C)

Ignition/no ignition (+/-)

2

50

-

2

100

-

4

150

+

4

130

+

4

110

+

4

105

-

4

107.5

+

4

106

-

4

107

+

 

Main test:

The results of the main measurements and temperatures where ignition (+) was detected and no ignition (-) detected are reported in the table below.

Test item (mL)

Temperature (°C)

Ignition/no ignition (+/-)

Barometric pressure (hPa)

4

107.0

+

1008.7

4

106.5

-

1008.7

4

107.0

+

1008.7

4

106.5

+

1008.7

4

106.0

-

1008.7

4

106.5

+

1008.7

4

106.0

-

1008.7

4

106.5

+

1008.7

4

106.0

-

1008.7

 

The flash point corrected to 1013 hPa is rounded down with an accuracy of 0.5°C to 106.5°C

Interpretation of results:
GHS criteria not met
Conclusions:
A flash point of 106.5°C at 1013 hPa was determined for the substance using relevant test method. The result is considered to be reliable.

Description of key information

Flash point: 106.5°C at 1013 hPa (ISO 3679)

Key value for chemical safety assessment

Flash point at 101 325 Pa:
106.5 °C

Additional information

A measured flash point value of 106.5°C at 1013 hPa was determined for the substance using a rapid equilibrium closed-cup method in accordance with ISO 3679 Test Method but not in compliance with a known quality system. The result is considered to be reliable and was selected as the key study.

In a secondary source to which reliability could not be assigned, flash point of 77°C at 1013 hPa was reported for the substance.

Differences in flash point measurements may result from differences in purity of the test substance (presence of volatile impurities) and the method used.

A measured flash point of 106.5°C at 1013 hPa and a measured boiling point of 242°C at 1013 hPa, indicate that the substance should not be classified for flammability according to the criteria of Regulation (EC) No. 1272/2008.

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