Registration Dossier

Physical & Chemical properties

Auto flammability

Currently viewing:

Administrative data

Link to relevant study record(s)

Referenceopen allclose all

Endpoint:
relative self-ignition temperature (solids)
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
EU Method A.16 (Relative Self-Ignition Temperature for Solids)
Relative self-ignition temperature:
> 400 °C
Remarks on result:
other:
Remarks:
at atm. press. of 1013.25 hPa

Up to the melting point no self-heating was registered.

Conclusions:
The substance does not ignite when being heated up to 400 °C.
Endpoint:
relative self-ignition temperature (solids)
Type of information:
read-across from supporting substance (structural analogue or surrogate)
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study
Justification for type of information:
Only the edetic acid moiety of the test item can ignite. Thus it is justified to evaluate the flammability of K3EDTA by a read-across approach to Na2EDTA. The exchange of sodium by potassium cations will not effect the flammability. The exchange of one proton by a potassium cation might lower the flammibility. Thus by this approach the auto flammability will not be underestimated.
Reason / purpose for cross-reference:
read-across source
Qualifier:
according to guideline
Guideline:
EU Method A.16 (Relative Self-Ignition Temperature for Solids)
Relative self-ignition temperature:
> 400 °C
Remarks on result:
other:
Remarks:
at atm. press. of 1013.25 hPa

Up to the melting point no self-heating was registered.

Conclusions:
The substance does not ignite when being heated up to 400 °C.

Description of key information

auto flammability K3EDTA: >400°C at 1013.3 hPa

Key value for chemical safety assessment

Additional information

Based on a read-across from the related substance disodiumdihydrogenethylenediaminetetraacetate a self-ignition temperature range of >400°C was determined in a reliable study conducted according to an appropriate test protocol and in compliance with GLP.