Aluminium- metallurgy: - as component of fluxing agents, protective and refining salts Production of abrasives: - as active filler in resinbonded abrasives for metal treatment Production of enamel, glazing frits and glass: - as flux and opacifying agent Production of soldering agent: - as component for fluxing agents Production of welding agents: - as component of welding rod coatings and welding powders Blasting and pyrotechnics: - for fireworks Metal surface treatment: - as component in pickling pastes for stainless steel