Precipitated barium sulfate is a white amorphous powder with a relative density of 4.50 (15℃) and a melting point of 1580℃. Due to its high refractive index (1.63~1.65), it shows a white color and has a certain hiding power. It is almost insoluble in water, ethanol, and acid, and soluble in hot sulfuric acid. It is easy to form mixed crystals with potassium permanganate, calcium carbonate, or metal nitrates. It can be reduced to barium sulfide with carbon at high temperatures.

It is an important basic chemical raw material. Its main uses include:

• Raw Materials or Fillers: For paints, coatings, inks, plastics, rubber, and batteries.
• Surface Coating Agent: For image paper and copper plate paper.
• Sizing Agent: In the textile industry.
• Clarifying Agent: In glass products, where it can act as a defoaming agent and increase luster.
• Protective Wall Material: For radiation protection.
• Other Applications: Used in porcelain, enamel, dyes, and other industries.
• Raw Material for Manufacturing Other Barium Salts.