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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:
2001
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study without detailed documentation
Qualifier:
according to guideline
Guideline:
ISO No., other: German standard method "DIN EN 22719"
Deviations:
no
Qualifier:
equivalent or similar to guideline
Guideline:
ISO 2719 (Determination of flash point - Pensky-Martens closed cup method)
Version / remarks:
2002
Deviations:
no
GLP compliance:
no
Type of method:
closed cup
Flash point:
149 °C
Atm. press.:
1 013 hPa
Remarks on result:
other: Starting temperature 125 °C, described in 2 K intervals
Flash point:
147 °C
Atm. press.:
1 013 hPa
Remarks on result:
other: Starting temperature 125 °C, described in 2 K intervals
Flash point:
147.5 °C
Atm. press.:
1 013 hPa
Remarks on result:
other: Temperature correction due to atmospheric pressure, described in 0.5 K intervals

For the reference substance dibutyphthalate (CAS 84 -74-2) a flash point of 156.5 °C was obtained.

Conclusions:
For heptanoic anhydride a flash point of 147.5 °C was obtained at 1013 hPa.
Executive summary:

According to the testing procedure based on DIN EN 22719 which is the German version of the international standard ISO 2719 a flash point of 147.5 °C was measured at 1013 hPa for the test substance. Heptanoic anhydride was placed in the test vessel of the Pensky-Martens apparatus and heated to the test temperature according to the testing procedure.

Description of key information

For heptanoic anhydride a flash point of 147.5 °C was obtained at 1013 hPa.

Key value for chemical safety assessment

Flash point at 101 325 Pa:
147.5 °C

Additional information

The substance does not need to be classified according to the result obtained for the flash point.

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