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Diss Factsheets

Physical & Chemical properties

Flash point

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Endpoint:
flash point of flammable liquids
Type of information:
experimental study
Adequacy of study:
weight of evidence
Study period:
2010-08-27
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study with acceptable restrictions
Remarks:
The study was conducted according to an appropriate standard method but not in compliance with GLP.
Qualifier:
according to guideline
Guideline:
ISO 3679 (Determination of flash point - Rapid equilibrium closed cup method)
Version / remarks:
2004
Deviations:
not specified
Qualifier:
according to guideline
Guideline:
EU Method A.9 (Flash-Point)
GLP compliance:
no
Other quality assurance:
ISO/IEC 17025 (General requirements for the competence of testing and calibration laboratories)
Remarks:
ISO 9001:2008
Type of method:
equilibrium method closed cup
Flash point apparatus:
Setaflash apparatus
Key result
Flash point:
57.5 °C
Atm. press.:
101.3 kPa

Test result

Test

Measured value (°C)

Corrected value (°C)

1

57

58.2

2

56

57.2

Mean value*

57.5

*the mean value is calculated from test 1 and 2 and rounded to ±0.5°C.

Determination of the corrected flash-point:

Tc = T0 + 0.25 x (101.3 – p)

TC = corrected flash point to the standard atmospheric pressure (101.3 kPa)

T0 = measured flash point at actual atmospheric pressure

p = actual atmospheric pressure [kPa]

Interpretation of results:
Category 3 (flammable liquids) based on GHS criteria
Conclusions:
A flash point value of 57.5°C at 1013 hPa has been determined for the substance using an appropriate test method. The result is considered to be reliable.
Endpoint:
flash point of flammable liquids
Type of information:
experimental study
Adequacy of study:
weight of evidence
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study without detailed documentation
Qualifier:
according to guideline
Guideline:
ISO 3679 (Determination of flash point - Rapid equilibrium closed cup method)
Version / remarks:
2004
Deviations:
not specified
GLP compliance:
not specified
Type of method:
equilibrium method closed cup
Flash point apparatus:
Setaflash apparatus
Key result
Flash point:
41 °C
Remarks on result:
other: Information on ambient pressure not stated
Key result
Flash point:
57 °C
Remarks on result:
other: Information on ambient pressure not stated
Key result
Flash point:
70 °C
Remarks on result:
other: Information on ambient pressure not stated
Interpretation of results:
Category 3 (flammable liquids) based on GHS criteria
Conclusions:
A flash point value of 41°C, 57°C and 70°C have been determined for the substance using an appropriate test method. The results are considered to be reliable.

Description of key information

Flash Point: 41 - 70°C (ISO 3679)

Key value for chemical safety assessment

Flash point at 101 325 Pa:
41 °C

Additional information

Several measured flash points are available for the substance. A measured flash point of 57.5°C at 1013 hPa was determined for the registered substance using a rapid equilibrium method in accordance with ISO 3679 Test Method (Haas 2011). In addition, flash point values of 41°C, 57°C and 70°C were determined for the substance using a rapid equilibrium method in accordance with ISO 3679 Test Method (Wacker 2008).

 

Variations in the flash point values may be caused by variations in purity of the test substance and in the test method used. In particular, the presence of higher concentrations of volatile impurities such as methanol (a hydrolysis product of the substance) can result in lower flash points. The reliable values are used as weight of evidence. Each registrant will classify their product accordingly.

 

In available secondary sources to which reliability could not be assigned, flash point values of 46°C and 67°C were reported for the substance.

 

Flash point values of 41°C, 57°C and 57.7°C, indicate that the substance should be classified for flammability (Category 3) in accordance with the criteria of Regulation (EC) No. 1272/2008.

 

Flash point value of 70°C indicates that the substance should not be classified for flammability in accordance with the criteria of Regulation (EC) No. 1272/2008.