Physical and chemical properties: 1.1 molecular formula: BaSO4 1.2 molecular weight: 233.39 1.3 melting point: 1580℃
1.4 relative density (water = 1) : 4.50(15℃) , 1.5 nature: White oblique side crystallization or white amorphous powder,
Insoluble in Water, acide, alkali and organic solvent.

Usage:
1) Medical Treatment : it is used for gastrointestinal tract contrast agent ; 2) Industry : it is used as de material or filler of paint ,
printing ink , plastic , rubber and storage battery etc.