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Barium sulfate is an inorganic compound with the chemical formula BaSO4.
It is a white crystalline solid that is odorless and insoluble in water.
It occurs as the mineral barite, which is the main commercial source of barium and materials prepared from it.
Its white opaque appearance and high density are used in its main applications.
It is one of the most important water-soluble barium salts.
CAS number: 7727-43-7
EC number:231-784-4
Chemical formula:BaSO 4
Molar mass:233.39 g/mol
Barium sulfate increases the density of the liquid.
Barium sulfate increases the hydrostatic pressure in the well.
Barium sulfate reduces the possibility of explosion.
Barium sulfate is used in the manufacture of heat treatment salts and hardening of steel.
Barium Sulfate has a variety of uses such as in the manufacture of Barium Chromate and other barium salts such as Barium Chromate.
It is also used to give a bright green color in fireworks.
Barium sulfate has a suspension structure.
Suspended barium sulfate is often used medically as a radiocontrast agent in X-ray imaging and other diagnostic procedures.
It is most often used for imaging the gastrointestinal tract during what is colloquially known as a "barium meal".
It is administered orally or via enema as a suspension of fine particles in a thick milk-like solution.
Barium is a heavy commodity.
Although water-soluble compounds of barium are generally highly toxic, barium sulfate is poorly soluble.
Barium sulfate protects the patient from absorbing harmful amounts of the metal.
Barium sulfate is mostly used as a component of white pigment in paints.
In oil paint, barium sulfate is almost transparent.
Barium sulfate is used as a filler or to change consistency.
The combination of barium sulfate and zinc sulfide (ZnS) is the inorganic pigment called lithopone.
It is used in photography as a coating for some photographic papers.
It is also used as a coating to distribute light evenly.
Barium sulfate is highly reflective of both visible and ultraviolet light.
They used barium sulfate as a paint component that cooled the surfaces to which it was applied.
Barium sulfate contrasts with available white dyes.
Barium sulfate is widely used as a filler in plastics to increase the density of the polymer.
Barium sulfate increases acid and alkali resistance.
Barium sulfate reduces opacity.
They are also used as X-ray shielding materials due to their improved radio opacities.
Barium sulfate is used in soil testing.
Colored indicators are used in tests for soil pH and other soil qualities.
Small particles in the soil can cloud the test mixture.
This can make it difficult to see the color of the indicator.
Barium sulfate added to the mixture binds to these particles, making them heavier.
Thus, it sinks to the bottom and leaves a clearer solution.
In colorimetry, barium sulfate is used as a near-perfect diffuser when measuring light sources.
In metal casting, molds used are often coated with barium sulfate to prevent molten metal from sticking to the mold.
It is also used in brake pads, anaacoustic foams, powder coatings and root canal filling.
Barium sulfate is a component of "rubber" pellets used by Chilean police.
Barium sulfate, together with silica, helps the pellet reach a hardness of 96.5 Shore A.
Barium sulfate is sensitive to excessive reduction.
Barium sulfate is used as a catalyst support in the selective hydrogenation of functional groups.
With low surface area, the contact time of the substrate with the catalyst is shortened, thus providing selectivity.
Palladium on barium sulfate is also used as a catalyst in reduction.
Barium compounds emit a characteristic green light when heated at high temperature.
Barium salts are often used in green pyrotechnic formulas.
However, nitrate and chlorate salts are more common.
Barium sulfate is commonly used as a component of "strobe" pyrotechnic compositions.
Barium sulfate is usually obtained from barite, which is quite impure.
Barite is treated by thermo-chemical sulfate reduction (TSR), also known as carbothermal reduction, to obtain barium sulfide:
BaS04 + 4 C → BaS + 4 CO
In the laboratory, barium sulfate is produced by combining solutions of barium ions and sulfate salts.
Barium sulfate is the least toxic salt of barium due to its insolubility.
Wastes containing barium salts are sometimes treated with sodium sulfate to immobilize the barium.
Barium sulfate reduces toxicity.
Barium sulfate is one of the most insoluble salts of sulfate.
Its low solubility is used as a test for sulfate as well as Ba2+ ions in qualitative inorganic analyses.
Barium sulfate is reduced by carbon to barium sulfide.
Barium sulfate led to the discovery of the first synthetic phosphorus.
Sulfite, unlike sulfate, is soluble in water.
Soluble salts of barium are moderately toxic to humans.
However, Barium sulfate is not toxic due to its insolubility.
The most common route of unintentional barium poisoning is from consumption of soluble barium salts mislabeled as BaSO 4.
In the Celobar incident, nine patients died due to improperly prepared radiocontrast agent.
Barium sulfate is used in the manufacture of heat treatment salts.
Barium sulfate is used in the hardening of steel, in the manufacture of pigments, lubricants, PVC stabilizers.
Appearance: Colorless liquid
Melting point: 0 °C (estimated)
Boiling point: 212 °C (estimated)
Density: 1.0g/mL
Soluble in H2O: None
Full Mass: 633.981526 g/mol
Monoisotopic Mass: 633.981526 g/mol
Barium sulfate is a type of lubricant additive widely used in the production of various lubricating oils and greases.
Barium sulfate is obtained from the reaction of acid and barium compounds.
This compound provides lubricants with excellent detergent, dispersant and anti-rust properties.
Barium sulfate is a very important ingredient in the industrial and marine sectors.
Since barium sulfate has a high melting point and is insoluble in water, it is used as a separating material in casting copper anode plates.
Anode plates are cast into copper molds.
Therefore, a fine suspension of barium sulfate powder in water is used as a coating on the mold surface to prevent direct contact of liquid copper with the solid copper mold.
Thus, when the molten copper solidifies in the form of an anode plate, it can be easily separated from the mold.
SYNONYMS
VANPLAST 202;
VANPLAST PL;
VANPLAST R;
sulfonicacids,
petroleum,
bariumsalts;
BARIUM PETROLEUM SULFONATE;
VANPLAST 202;
;Barium petroleum sulfonate;
sulfonic acids,
petroleum,
barium salts
