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Oxidising properties

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Endpoint:
oxidising solids
Type of information:
experimental study
Adequacy of study:
key study
Study period:
from 19 of April 2018 to 25 of April 2018
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
UN Manual of Tests and Criteria: Test O.1 (Test for oxidizing solids)
GLP compliance:
yes
Specific details on test material used for the study:
SOURCE OF TEST MATERIAL
- Source and lot/batch No.of test material: 1601762
- Expiration date of the lot/batch: 2021
- Purity test date: 2016
Contact with:
powdered cellulose
Duration of test (contact time):
> 300 s
Sample tested:
4:1 sample-to-cellulose ratio
Parameter:
mean burning time
Result:
> 300 s
Sample tested:
1:1 sample-to-cellulose ratio
Parameter:
mean burning time
Result:
> 300 s

In the following table there were shown the results of determination for the reference substance with cellulose.

 Mixture of potassium bromate and cellulose in mass ratio:  3:7  2:3  3:2
 Mean burning time [s]  93.0 ± 3.8  52.0 ± 4.4  18.6 ± 0.9
Interpretation of results:
GHS criteria not met
Conclusions:
The oxidizing properties of magnesium oxalate was determined following the Test UN O.1 of the Recommendations on the Transport of Dangerous Goods, Manual of Tests and Criteria, 6th.
The test item does not have oxidizing properties according to the test UN O.1.
Endpoint:
oxidising 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:
REPORTING FORMAT FOR THE ANALOGUE APPROACH

1. HYPOTHESIS FOR THE ANALOGUE APPROACH
The hypothesis is that properties are likely to be similar or follow a similar pattern as a result of the presence of a common organic part. This is a reasonable assumption for the majority of organic salt compounds (e.g. metal salts of some organic acids).

2. SOURCE AND TARGET CHEMICAL(S) (INCLUDING INFORMATION ON PURITY AND IMPURITIES)
Analogue approach between sodium oxalate (TARGET CHEMICAL) and other oxalate salts such as magnesium oxalate (SOURCE CHEMICAL).
Purity of source and target substance : above 99%

3. ANALOGUE APPROACH JUSTIFICATION
Thus, this endpoint study record is part of a Weight of Evidence approach comprising a read-across and an experimental study. The experimental study was conducted s to fulfil the information requirements as further explained in the provided endpoint summary.
Reason / purpose:
read-across source
Sample tested:
4:1 sample-to-cellulose ratio
Parameter:
mean burning time
Result:
> 300 s
Sample tested:
1:1 sample-to-cellulose ratio
Parameter:
mean burning time
Result:
> 300 s
Interpretation of results:
GHS criteria not met
Conclusions:
An analogue approach between sodium oxalate salt and magnesium oxalate salt has been conducted. The conclusion of oxidising properties tested of the magnesium oxalate  salts can be extended to sodium oxalate without ambiguity.
The oxidizing properties of test item was determined following the Test UN O.1 of the Recommendations on the Transport of Dangerous Goods, Manual of Tests and Criteria, 6th.
The test item does not have oxidizing properties according to the test UN O.1.
Executive summary:

An analogue approach between sodium oxalate salt and magnesium oxalate salt has been conducted.

The hypothesis is that properties are likely to be similar or follow a similar pattern as a result of the presence of a common organic part. This is a reasonable assumption for the majority of organic salt compounds (e.g. metal salts of some organic acids).

Indeed, the conclusion of oxidising properties tested of the magnesium oxalate  salts can be extended to sodium oxalate without ambiguity.

The oxidizing properties of test item was determined following the Test UN O.1 of the Recommendations on the Transport of Dangerous Goods, Manual of Tests and Criteria, 6th.

The test item does not have oxidizing properties according to the test UN O.1.

Endpoint:
oxidising solids
Data waiving:
study scientifically not necessary / other information available
Justification for data waiving:
the study does not need to be conducted because there are no chemical groups present in the molecule which are associated with oxidising properties and hence, the classification procedure does not need to be applied
Justification for type of information:
JUSTIFICATION FOR DATA WAIVING
Not considered as potentially oxidant based on chemical structure (i.e. The substance does not contain fluorine or chlorine, contains oxygen, but chemically bonded only to carbon or hydrogen).

Description of key information

An analogue approach between sodium oxalate salt and magnesium oxalate salt has been conducted. The conclusion of oxidising properties tested of the magnesium oxalate  salts can be extended to sodium oxalate without ambiguity.

The oxidizing properties of test item was determined following the Test UN O.1 of the Recommendations on the Transport of Dangerous Goods, Manual of Tests and Criteria, 6th.

The test item does not have oxidizing properties according to the test UN O.1.

Key value for chemical safety assessment

Oxidising properties:
non oxidising

Additional information

Justification for classification or non-classification