Industrial Blanc Fixe High Purity Precipitation of Barium Sulfate

barium sulphate:

The mineral of barium sulfate is called barite. It is a white amorphous powder. Stable properties, insoluble in water, acid, alkali or organic solvents. Barium sulfate in radiology is mainly used as a contrast agent for gastrointestinal tract due to its absorption of X-rays in gastrointestinal tract. Used to make barium salt, etc.
Barium sulfate is used as a filler in coatings, paints, rubber, plastics, thermosetting plastic powders, paper brighteners, textiles, etc. Used as a filler in glass production. It can increase the gloss of glass.

specifications:

System number:

CAS no. : 7727-43-7;

MDL number: MFCD00003455

EINECS no. : 231-784-4

RTECS number: CR0600000

PubChem number: 24892087

Safety information:

Customs code: 2833270000

WGKGermany:

Danger Category Code: R20/21/22

Safety Instructions: 22-24/25-36-26

RTECS number: CR0600000

Dangerous Goods mark: Xn
Properties and Stability:

High heat decomposition produces toxic sulfide flue gas.

Avoid contact with oxides. Almost insoluble in water, ethanol and acid. Soluble in hot concentrated sulfuric acid, easy to agglomerate when dry. Barium sulfide can be reduced to carbon at 600 ºC. It can be reduced by hydrogen gas at 900 ~ 1000ºC. Staff should do a good job of protection, the workplace should have good ventilation conditions. In case of contact with skin and eyes, wash immediately with running water.

With weak alkalinity, and carbon co-heat is reduced to barium sulfide, hydrogen sulfide gas contact does not occur color change.

Superfine barium sulfate is precipitated barium sulfate with extremely high dispersion. Soluble in hot sulfuric acid, insoluble in water, alcohol and other solvents. It has the advantages of narrow particle size distribution, good dispersion, strong chemical inertia, good stability, acid and alkali resistance, moderate hardness, high relative density, high whiteness, and can absorb harmful rays. It is a kind of material with environmental protection function.

Application USES:
1. Insoluble in water and acid, stable chemical properties, no magnetic toxicity, and has the ability to absorb X rays and gamma rays. Barite mainly occurs in sedimentary layered deposits and low temperature hydrothermal veins, and is often associated with quartz, dolomite, calcite, fluorite, galena, sphalerite, chalcopyrite and so on. 2. It is mainly used as a weighting agent for oil and natural gas drilling mud, and is also an important mineral raw material for extracting barium metal and making various barium compounds. The most important industrial barium compounds are barium carbonate, barium chloride, barium sulfate, barium nitrate, barium hydroxide, barium oxide, barium peroxide, barium chromate, barium manganate, barium chlorate, barium zinc white, barium polysulfide and so on. Barium compounds are widely used as raw materials and fillers for rubber, plastics, pigments, coatings, papermaking, textiles, paints, inks and welding electrodes. Used as barium base grease, oil refining, beet sugar, rayon raw materials; Used as insecticide, sterilizer, rodenticide, explosive, green fireworks, signal flare, tracer bullet, indicator of medical X-ray images, etc. Also used in glass, ceramics, leather, electronics, building materials, metallurgy and other departments. Barium metal can be used as getter and binder for television and vacuum tube. Barium alloys with metals such as aluminum, magnesium, lead and silver are used to make bearings. 3. As a mordant dyeing, fabric sizing agent, fillers, papermaking filler, filler of fire retardant fabric and leather, pharmaceutical industry a laxative and production stomach medicine raw materials of magnesium trisilicate, esophagus, X-ray imaging in the diagnosis of gastrointestinal tract in the production of yeast, monosodium glutamate and toothpaste with calcium hydrogen phosphate stabilizer, also used in preparation plant hibernate extension agent. It is used in metal plating for preparation of non-crack plating solution, and as conductive salt in nickel plating solution, and can make the white surface of coating soft. 4. Used as a filler for adhesives, sealants, rubber, plastics, paints, inks, white pigments, insulation tapes, etc., can give rubber and plastic products with X-ray permeability, and can improve the fire resistance of neoprene rubber products. It can be used as sizing agent on textile. Printing paper and coated paper used for surface coating agent. In electroplating industry, it is used as a conductive salt for nickel plating solution, which can improve the dispersion of electroplating solution. Used as a clarifying agent in glass manufacturing, it has the effect of increasing luster and defoaming. It is also a raw material for making enamel, ceramics, pigments and other barium salts, and a contrast agent for X-ray fluoroscopy of stomach and intestines.