Chemicals used in industry, in particular solid and liquid coating agents for coating [ plastics, ] metals, ceramics and glasses, as well as for the manufacture of semiconductors, electric and electronic components, dielectrics, anodes, microprocessors, magnetic and optical data carriers, displays, [ lamps, ] LEDs, optical glasses, optical components, diffusion-barriers, corrosion-resistant layers, temperature-resistant layers and components of chemical plants; chlorides, namely, Tantalum Pen...