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Reference
Endpoint:
oxidising solids
Type of information:
experimental study
Adequacy of study:
key study
Study period:
September 2011
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Remarks:
Guideline compliant estimation with good documentation.
Qualifier:
according to guideline
Guideline:
EU Method A.17 (Oxidising Properties (Solids))
GLP compliance:
no
Contact with:
powdered cellulose
Key result
Sample tested:
test mixture (not specified)
Remarks:
migrated information
Parameter:
maximum burning rate
Result:
<= 0.34 mm/s
Remarks on result:
other: Mixture sample : cellulose 80:20
Sample tested:
reference mixture (not specified)
Remarks:
migrated information
Parameter:
maximum burning rate
Result:
1.23 mm/s
Remarks on result:
other: Mixture reference substance : cellulose 60:40

The mixtures in the range of 10 to 50 % sample / cellulose exposed no combustion. The flame ceased within 5 seconds after removing the gas burner. The mixtures containing 60 and 90 % sample / cellulose showed no propagation of the flame. The flame ceased within 30 seconds. The mixture of 70% sample / cellulose showed a slow propagation of the flame. It reached 2 cm within 77 seconds. After this distance the flame ceased.

 

Only the mixture containing 80% sample / cellulose showed a very slow combustion over the whole distance. The fastest propagation of the flame was 594 seconds.

Interpretation of results:
GHS criteria not met
Remarks:
Migrated information
Executive summary:

The non-GLP Klimisch 1 study from Bütfering (2012) was performed according to EU Method A.17 (Oxidising Properties (Solids)). Prior to testing the test material Butanedioic acid, sulfo-, 1,4-bis(2-methylpropyl) ester, sodium salt was grinded and mixed with cellulose. The mixtures in the range of 10 to 50 % sample / cellulose exposed no combustion. The flame ceased within 5 seconds after removing the gas burner. The mixtures containing 60 and 90 % sample / cellulose showed no propagation of the flame. The flame ceased within 30 seconds. The mixture of 70% sample / cellulose showed a slow propagation of the flame. It reached 2 cm within 77 seconds. After this distance the flame ceased.

Only the mixture containing 80% sample / cellulose showed a very slow combustion over the whole distance. The fastest propagation of the flame was 594 seconds. The burning rate of the reference substance was 162 seconds.

Since the burning rate of the test item Butanedioic acid, sulfo-, 1,4-bis(2-methylpropyl) ester, sodium salt was significantly shorter than the burning rate of the reference material, the test item has no oxidizing properties according to the definition in the Council Regulation (EC) No 440/2008EEC.

Description of key information

Key value for chemical safety assessment

Oxidising properties:
non oxidising

Additional information

The non-GLP Klimisch 1 study from Bütfering (2012) was performed according to EU Method A.17 (Oxidising Properties (Solids)). Prior to testing the test material Butanedioic acid, sulfo-, 1,4-bis(2-methylpropyl) ester, sodium salt was grinded and mixed with cellulose. The mixtures in the range of 10 to 50 % sample / cellulose exposed no combustion. The flame ceased within 5 seconds after removing the gas burner. The mixtures containing 60 and 90 % sample / cellulose showed no propagation of the flame. The flame ceased within 30 seconds. The mixture of 70% sample / cellulose showed a slow propagation of the flame. It reached 2 cm within 77 seconds. After this distance the flame ceased.

Only the mixture containing 80% sample / cellulose showed a very slow combustion over the whole distance.The fastest propagation of the flame was 594 seconds. The burning rate of the reference substance was 162 seconds.

Justification for classification or non-classification

Since the burning rate of the test item Butanedioic acid, sulfo-, 1,4-bis(2-methylpropyl) ester, sodium salt was significantly shorter than the burning rate of the reference material, the test item has no oxidizing properties according to the definition in the Council Regulation (EC) No 440/2008EEC.