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Oxidising properties

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Description of key information

Based on read-across from Lithium bis(trifluoromethylsulfonyl)imide, the substance Sodium bis(trifluoromethylsulfonyl)imide is not considered as an oxidizing solid.

Key value for chemical safety assessment

Oxidising properties:
no

Additional information

Oxidizing properties of the structural analogue TFSILi were assessed following United Nations Recommendations on the Transport of Dangerous Goods – Manual of Tests and Criteria – Fifth revised edition (2010) – Test O.1 (Part III, Section 34.4.1). As no main reaction with the test item / cellulose mixture in proportions 4:1 and 1:1 was observed, the reaction time was then considered to be lower than the mean time of reaction with the reference item / cellulose mixture in proportion 3:7. Therefore, the test item was not considered as an oxidizing solid of Division 5.1 and thus was not assigned to any packing group.

Justification for classification or non-classification

The UN O.1 Test is used to establish the classification with respect to oxidizing properties under CLP. In the case of a non-oxidizing test item, it can be assumed that the EU Method A.17 used to classify under DSD would have led to the same conclusion. Indeed, the main differences between both tests are:

- the EU Method A.17 uses barium nitrate as reference item whereas the UN O.1 Test uses potassium bromate;

- the purpose of the two guidelines is not the same. Indeed, the DSD regulation is designed to indicate if the test item has oxidizing properties or not. While the CLP regulation permits to distinguish the degree of oxidizing power of the test item.

As no main reaction with the test item / cellulose mixture in proportions 4:1 and 1:1 was observed, it can be expected that a similar behaviour would have been obtained under the slightly different experimental conditions applied the EU Method A.17.

Based on the above information, Lithium bis(trifluoromethylsulfonyl)imide does not require a classification regarding its oxidizing properties, neither under DSD, nor under CLP. For this reason the substance Sodium bis(trifluoromethylsulfonyl)imide is also not considered as an oxidizing solid.

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