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EC number: 804-361-2
CAS number: 91742-21-1
Based on read-across from Lithium bis(trifluoromethylsulfonyl)imide, the substance Sodium bis(trifluoromethylsulfonyl)imide is not considered as an oxidizing solid.
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
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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