Widely used in its BaSO4 form, barium is reputed for its whitening, non-abrasive properties as well as for its high density and chemical neutrality. Barium is a silver-coloured soft metal and is used by numerous industrial players, starting with the oil groups who use it as an additive to work the density of drilling muds. In addition, its high X-ray and gamma-ray absorption capacity make it a preferred element for radiologists, who use barium meal as a radiological opacifier.
- Gas trapping in cathode-ray tubes
- Paint pigmentation
- Pyrotechnic production (green colouring in fireworks)
- Steel hardening