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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Administrative data

Endpoint:
relative self-ignition temperature (solids)
Data waiving:
study scientifically not necessary / other information available
Justification for data waiving:
other:
Justification for type of information:
See further information in the cross-ref.
Cross-reference
Reason / purpose for cross-reference:
data waiving: supporting information
Reference
Endpoint:
self-heating substances / mixtures
Type of information:
experimental study
Adequacy of study:
key study
Study period:
20 - 22 March 2017
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
other: UN Recommendations on the TRANSPORT OF DANGEROUS GOODS: Manual of Tests and Criteria
Version / remarks:
Rev. 6 (2015)
Deviations:
no
Qualifier:
according to guideline
Guideline:
other: VDI 2263 Sheet 1 Grewer Oven
Version / remarks:
1990
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Key result
Test procedure:
other: Grewer oven
Remarks:
pure test item
Max. temp. reached:
230
Result:
other: no significant temperature increase was observed starting at 200°C
Remarks on result:
other: on the basis of the results, the test item cannot be classified. Further tests are needed.
Key result
Test procedure:
other: Grewer oven
Remarks:
test item in mixture with Kieselgur
Max. temp. reached:
220
Result:
other: no significant temperature increase was observed starting at 200°C
Remarks on result:
other: on the basis of the results, the test item cannot be classified. Further tests are needed.

In the investigation of self-ignition in the Grewer Oven for the pure test item a small exothermic process was detected starting at 200 °C. This self-heating did not lead to a significant temperature increase (30 °C above the corresponding temperature of the reference material). A black residue remained in the wire basket after the test.

For the test item in mixture with Kieselguhr also a small exothermic effect was observed starting at 200 °C, which also did not lead to a significant temperature increase (20 °C above the corresponding temperature of the reference material).

Interpretation of results:
study cannot be used for classification
Conclusions:
The pure test item Alpha-Ketoglutarate disodium salt (CAS no. 305-72-6) indicated a self-heating at atmospheric pressure starting at a temperature of 200 °C. This self-heating process did not lead to a significant temperature increase.
On the basis of the results of the tests on the self-ignition in the Grewer Oven according to the UN Recommendations on the TRANSPORT OF DANGEROUS GOODS: Manual of Tests and Criteria, Appendix 6 Division 4.2, a classification of the test item as self-heating substance cannot be excluded. Further tests have to be performed for the classification.
Executive summary:

The pure test item Alpha-Ketoglutarate disodium salt (CAS no. 305 -72 -6) indicated a self-heating at atmospheric pressure starting at a temperature of 200 °C. This self-heating process did not lead to a significant temperature increase.

On the basis of the results of the tests on the self-ignition in the Grewer Oven according to the UN Recommendations on the TRANSPORT OF DANGEROUS GOODS: Manual of Tests and Criteria, Appendix 6 Division 4.2, a classification of the test item as self-heating substance cannot be excluded. Further tests have to be performed for the classification.

Data source

Materials and methods

Results and discussion

Applicant's summary and conclusion