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Physical & Chemical properties

Flash point

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flash point of flammable liquids
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
test procedure in accordance with national standard methods with acceptable restrictions
Test procedure in accordance with national standard methods (ASTM) without GLP.
equivalent or similar to guideline
ISO 2719 (Determination of flash point - Pensky-Martens closed cup method)
Version / remarks:
2002. Remark: ASTM-D93
GLP compliance:
Type of method:
non-equilibrium method open cup
Flash point apparatus:
Pensky-Martens apparatus
Key result
Flash point:
195 °C
Atm. press.:
ca. 101.5 kPa

Measurement parameters:

Rotation speed of the sample stirrer: 100 rpm

Expected Flash point of the sample: 178.9°C


Temperature of initial ignition source application: 170.0°C / 170°C

Atmospheric pressure: 101.7 kPa / 101.4 kPa

Flash point (uncorrected):196.1°C / 193.3°C

Flash point (corrected):196.0°C / 193.5°C

Interpretation of results:
GHS criteria not met
A flash point value of 195°C at atmospheric pressure was determined for the substance using a relevant test method. The result is considered to be reliable.
Executive summary:

Octadecan-1ol was determined according ASTM D93. The flash point was determined to be 195 °C at atmospheric pressure.

Description of key information

The flash point of octadecan-1-ol is 195°C at 1013 hPa.

Key value for chemical safety assessment

Flash point at 101 325 Pa:
195 °C

Additional information

A flash point value of 195°C at 1013 hPa was determined for octadecan-1-ol with use of non-equilibrium closed-cup method in accordance with ASTM-D93. The result is considered to be reliable.

A flash point value of 195°C and boiling point of 335°C indicate that octadecan-1-ol should not be classified for flammability in accordance with Regulation (EC) No. 1272/2008.

Discussion of trends in the Category of C6-24 linear and essentially-linear aliphatic alcohols:

The flash point of Category substances follow a predictable trend of increasing flash point temperature with increasing chain length together with increasing boiling point and decreasing vapour pressure.