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Auto flammability

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Endpoint:
relative self-ignition temperature (solids)
Type of information:
experimental study
Adequacy of study:
key study
Study period:
January 24, 2012 - March 19, 2012
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
EU Method A.16 (Relative Self-Ignition Temperature for Solids)
Version / remarks:
(2008)
Deviations:
no
GLP compliance:
yes
Key result
Remarks on result:
other: As no exothermic effect of the test substance was observed, the substance is considered not self-ignitable.

After the experiment, the test substance had turned into a charred residue and part of the test substance was collected in a container that was placed below the cube. It is unclear whether this was caused by melting or expanding of the test substance.

Conclusions:
In accordance with EU Method A.16 (2008) and according to GLP principles the self-ignition temperature of the substance was determined using a temperature programmed laboratory oven, a stainless steel wire mesh cube, NiCr/NiAl thermocouples and a temperature recording device. As no exothermic effect of the test substance was observed, the substance is considered not self-ignitable.
Endpoint:
auto-flammability
Type of information:
read-across from supporting substance (structural analogue or surrogate)
Adequacy of study:
key study
Reason / purpose:
read-across source
Key result
Auto-ignition temperature:
470 °C
Atm. press.:
>= 1 005.9 - <= 1 030.6 hPa
Remarks on result:
other: Auto-ignition temperature of an aqueous solution (with a solid content of approximately 39%)
Conclusions:
A commercially available auto-ignition temperature apparatus was used for the determination of the degree of auto-ignitability of an aqueous solution of the source chemical amphoacetates C12, a member of the chemical category, according to EC, DIN and IEC guidelines and according to GLP principles. The aqueous solution is auto-ignitable with an auto-ignition temperature of 470°C at atmospheric pressures between 1005.9 and 1030.6 hPa. This result is read-across to the registered substance.

Description of key information

The substance is not self-ignitable. Based on a study conducted with a substance analogue (amphoacetates C12), aqueous solutions of the substance are auto-ignitable with an auto-ignition temperature of approximately 470°C.

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:
470 °C

Additional information

The self-ignition temperature of the substance was determined in accordance with EU Method A.16 (2008) and according to GLP principles. A freeze dried aqueous solution was used in this study. Commercially available auto-ignition temperature apparatus was used for the determination of the degree of auto-ignitability of an aqueous solution of a substance analogue (amphoacetates C12), according to EC, DIN and IEC guidelines and according to GLP principles.