Assessing the impact of authorisation process as a regulatory tool in the European REACH regulation: A study on improving occupational safety for applying companies.

This study looks into the effectiveness of the authorisation procedure as a regulatory instrument within the framework of the European REACH regulation. It highlights its impact on enhancing occupational safety and health for both applicants and companies utilising the substances. This procedure encompasses manufacturers, importers, and downstream users of substances, as well as representatives of foreign manufacturers who are also eligible to seek authorisation.

Synthesis and crystal structure of tri-ethyl-ammonium hexa-bromido-uranate(IV) di-chloro-methane monosolvate.

Tri-ethyl-ammonium hexa-bromido-uranate(IV) di-chloro-methane monosolvate, [(CH)NH][UBr]·CHCl, was obtained in the form of dark-brown crystals from the reaction of uranium penta-bromide with NEt and ethyl-ene glycol in di-chloro-methane at low temperature. During the progress of the reaction, the reduction of uranium(V) to uranium(IV) was observed, whose associated oxidation product could not be identified. The uranium atom of the [UBr] anion is coordinated by six bromido ligands in the shape of an octa-hedron.

Rerefinement of the crystal structure of tri-chlorido-sulfonium-(IV) hexa-chlorido-uranate(V), (SCl)[UCl].

Single crystals of tri-chlorido-sulfonium-(IV) hexa-chlorido-uranate(V) were obtained from the reaction of uranium(IV) chloride with an excess of disulfur dichloride and studied by single-crystal X-ray diffraction. In comparison with the structure model reported previously [Sawodny (1983 ▸). , 81-88.