Registration Dossier

Administrative data

Endpoint:
auto-flammability
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2011
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: well performed study according to acknowledged standard but without GLP

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2011
Report date:
2011

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: VDI 2263 sheet 1
Deviations:
not specified
Principles of method if other than guideline:
A 8 ml cylindrical fine-mesh wire basket is filled with the test substance. The same is done with graphite as reference. Both samples are heated electrically in an air stream and the temperature inside the two samples is recorded. At the onset temperature the temperature of the test substance exceeds that of the reference measurement. Classification as self-heating is required when the onset temperature is below 220°C.
When the melting temperature of a test item is below a potential self-ignition temperature mixtures with kieselguhr can be used to avoid the escape of the molten test item out of the wire basket.

GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
614-960-9
EC Number:
614-960-9
Cas Number:
69399-57-1
Molecular formula:
C9H7N3O5
IUPAC Name:
614-960-9
Test material form:
solid: particulate/powder
Remarks:
migrated information: powder
Details on test material:
purity: 99.0%

Results and discussion

Auto-ignition temperature (liquids / gases)open allclose all
Auto-ignition temperature:
290 °C
Atm. press.:
ca. 1 atm
Remarks on result:
other: pure substance
Auto-ignition temperature:
290 °C
Atm. press.:
ca. 1 atm
Remarks on result:
other: 1 : 1 mixture with kieselguhr
Relative self-ignition temperature (solids)open allclose all
Relative self-ignition temperature:
290 °C
Remarks on result:
other: pure substance
Remarks:
at atm. press. of ca.1.0 atm
Relative self-ignition temperature:
290 °C
Remarks on result:
other: 1 : 1 mixture with kieselguhr
Remarks:
at atm. press. of ca.1.0 atm

Applicant's summary and conclusion

Conclusions:
Based on the detected onset for self-ignition there is no need to classify the test item as a self heating substance.
Executive summary:

The substance was tested for self-ignition usinf the Grewer-oven according VDI 2263 sheet 1. The pure substance was tested as well as a 1 : 1 mixture with kieselguhr. In both cases a self ignition was observed starting at 290°C