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Flash point

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flash point of flammable liquids
Type of information:
experimental study
Adequacy of study:
supporting study
Study period:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
according to guideline
ISO 3679 (Determination of flash point - Rapid equilibrium closed cup method)
Version / remarks:
GLP compliance:
not specified
Type of method:
closed cup
Key result
Flash point:
94 °C
Atm. press.:
1 013.25 hPa
A flash point of 94°C at 1013.25 hPa was determined for tert-Butylperoxy-3,5,5-trimethylhexanoat.
Executive summary:

The determination of the flash point of tert-Butylperoxy-3,5,5-trimethylhexanoat was performed according to ISO 3679 (closed cup). The "SETAFLASH" equipment was used.

A flash point of 94°C at 1013.25 hPa was determined for tert-Butylperoxy-3,5,5-trimethylhexanoat.

flash point of flammable liquids
Data waiving:
study technically not feasible
Justification for data waiving:
The study does not need to be conducted because the flash point for liquid organic peroxides is only relevant in the temperature range where the product is thermally stable. Above the SADT (self-accelerating decomposition temperature) of the product flash point determination is not relevant because decomposition products are evolved

Description of key information

The Self-Accelerating Decomposition Temperature (SADT) of tert-butyl 3,5,5-trimethylperoxyhexanoate (TBPIN) was determined to be 60 °C (see study in IUCLID section 4.23). It is therefore expected that the substance will be decomposed before the flash point is reached (CLP regulations and UN Recommendations on the Transport of Dangerous Goods, Manual of Tests and Criteria, 5th revised edition, sub-sections 28.1, 28.2, 28.3 and Table 28.3 and ECHA guidance on the application of the CLP criteria, section 2.14). Thus, a study that determines the flash point is not required.

Key value for chemical safety assessment

Additional information