Chemically, barium sulfate can be formed as simply as a chemical formula writing. But when it comes to the real industry, there are many kinds of barium sulfate, depending on how the materials are formed and processed.

Here is the content list

• Ways Of Producing Heavy Barium Sulfate
• Ways Of Producing Precipitated Barium Sulfate
• Ways Of Producing Modified Barium Sulfate

Ways Of Producing Heavy Barium Sulfate

In nature, barium sulfate, also known as barite, is a natural ore, generally in the form of bifurcated ingots. The color is mainly determined by the type and amount of impurities contained in it. Pure barite is colorless and transparent. Barite has no direct harm to the human body and can be directly contacted.

• Characteristics of heavy barium sulfate

Heavy barium sulfate, also known as barite powder or natural tantalum powder. It is made by the process of cleaning, grinding and drying after selecting natural barium sulfate ore (barite). The impurities are more, the quality is mainly determined by the mine itself, but its price is low, usually applied in white pigment production or low-grade. Used as a filler in the coatings, plastics, and ink industries.

Ways Of Producing Precipitated Barium Sulfate

At present, there are two main production processes for the precipitation of barium sulfate in China: the Glauber’s salt method and the sulfuric acid method.

• Glauber's salt method

Glauber's salt method is the conversion of natural barite ore by calcination to , and then reacts with mirabilite to form and by-product sodium sulfide.

• Sulfuric acid method

The sulfuric acid method converts into carbonic acid, and then reacts with pure sulfuric acid to form .

It can be seen from the above production process that the free enthalpy, odor which is caused by residual sulfur ion, impurities and black spots and whiteness of the precipitated barium sulfate by the sulfuric acid method are several steps more than the Glauber's salt method, and the cost is also higher. No wonder why it is currently the most expensive precipitated barium sulfate on the market.

Since the product is made by artificial processing, and unlike the heavy barium, the precipitated barium sulfate is almost free of impurities.

Characteristics of precipitated barium sulfate

It is slightly soluble in water and insoluble in acid. It is not toxic by itself, but it can cause poisoning if it contains soluble hydrazine. The precipitated barium sulfate in the industry is mainly formed by reacting barium sulfate with sulfuric acid, reacting barium chloride with sulfuric acid or sodium sulfate, and reacting barium sulfide with sodium sulfate. Precipitated barium sulfate is used as a filler in pharmaceuticals, high-grade coating inks, plastics, rubber, glass, ceramics, etc. because of its specific index. It is usually divided into coating grade precipitated sulfuric acid according to different applications.

Ways Of Producing Modified Barium Sulfate

Modified barium sulfate, which is further divided into modified barium sulfate and modified precipitated barium sulfate, is the treatment of barite powder or precipitated ones through related treatments, so that its performance is enhanced in a certain aspect, and the application is similar to precipitation ones.

We can also get the modified precipitated barium sulphate or superfine precipitated barium sulphate, which are further refined by further processing. Whose prices are higher than the raw materials of them.

Characteristics of Modified Barium Sulfate

It can be used as the raw materials or fillers in oil paint, ink, plastic, rubber and battery, the Surface smear medicament of the Printing paper and copper board, and sizing agent for textile industry. As clarifying agent, it can play a role of anti-foaming and increase the glossy of glass products. It also can be used as an anti-radiation protective wall material. In addition, it’s widely used in pottery, enamel, spices and paints, etc. What’s more, it can be used as the raw materials to produce other barium salts.

Although we have already known how barium sulfate is formed, people are not recommended to make it themselves, because toxic gases and other wastes are produced during the preparation process, and the finished products also contain impurities. It is best to choose a reliable manufacturer. If you are interested in our products, you are welcome to visit our company at any time.