The substance has corrosive properties, which is why it is assigned to UN No. 1759. However, after consultation with the BfR, it is not possible to determine the packing group precisely, as the available data is not sufficient. In this respect, the worst-case scenario is given here and the substance is assigned to packing group I. If the user has plausible data that indicate a lower level of danger, the substance must be assigned to the appropriate packing group (II or III).