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Barium Sulfate is available as odourless, tasteless, white or yellowish crystals or powder or polymorphous crystals.
Barium sulfate is stable and insoluble or negligibly soluble in water, and on burning, it may produce sulphur oxides.
Barium sulfate reacts violently with aluminium powder.
CAS Number: 7727-43-7
Molecular Formula: BaO4S
Molecular Weight: 233.39
EINECS Number: 231-784-4
Synonyms:BARIUM SULFATE, 7727-43-7, Baritop, Barium sulphate, Barosperse, Esophotrast, Macropaque, Micropaque, Microtrast, Radiobaryt, Radiopaque, Barotrast, Liquipake, EntroBar, EneMark, Blanc fixe, EneCat, Enamel White, Readi-CAT, Liquid E-Z-Paque, Actybaryte, Bakontal, Baraflave, Barodense, Baroloid, Baryxine, Bayrites, Citobaryum, Colonatrast, Danobaryt, Finemeal, Intropaque, Lactobaryt, Liquibarine, Microbar, Microfanox, Neobalgin, Novopaque, Oratrast, Supramike, Suspobar, Tonopaque, Topcontral, Unibaryt, Baricon, Baridol, Barobag, Barocat, Basofor, E-Z-Paque, Eweiss, Mixobar, Neobar, Oesobar, Polibar, Raybar, Tixobar, Travad, Rugar, Barii sulphas, Baryx Colloidal, Permanent White, PrepCat, Barium Andreu, EneSet, Gastropaque-S, HiTone, Liquid Polibar, Radimix Colon, Baritogen deluxe, Baryta White, Mikabarium B, Mikabarium F, Recto Barium, Barosperse II, Micropaque RD, Radio-Baryx, Sparkle Granules, Umbrasol A, Artificial barite, Baritop P, Barium sulfuricum, Redi-Flow, Liquid Barosperse, Bar-Test, Gel-Unix, Unit-Pak, Baritop G Powder, E-Z Preparations, Esopho-CAT, Ultra-R, Veri-O-Pake, X-Opac, Barosperse 110, Sol-O-Pake, Barytes 22, Epi-C, Liquid Polibar Plus, Liquid Sol-O-Pake, Artificial heavy spar, Baritop 100, E-Z-HD, Volumen, Baryum (sulfate de), Readi-CAT 2, Spezialsorte ai, Barium 100, Epi-Stat 57, Epi-Stat 61, Barii sulfas, BF 10 (sulfate), TonoJug 2000, Caswell No. 071B, Tagitol V, Sulfuric acid, barium salt (1:1), Readi-cat2, Barium sulfate (1:1), Barium sulfate (BaSO4), HD 200 Plus, E-Z-AC, E-Z-Paste esophageal cream, Esophotrast esophageal cream, Precipitated barium sulphate, CI 77120, Readi-cat2 smoothies, Varibar Nectar, BA147, HD 85, SS 50, Sachtoperse ab-tm 18383, 25BB7EKE2E, EPA Pesticide Chemical Code 007502, E-Z-Disk, VARIBAR, DTXSID0050471, AI3-03611, Readi-Cat 2 Smoothies, C.I. 77120, CHEBI:133326, READI-CAT 2 COMPONENT BARIUM SULFATE, Sulfate, Barium, 231-784-4, EZCAT, E Z CAT, Barium salt of sulfuric acid, Vanilla SilQ, Barium sulphate, NeuLumEX, Vizumax HD, Vizumax ENEM, Vanilla SilQ HD, Vanilla SilQ MD, Ba (sulfate), E-Z-Paste, VARIBAR HONEY, VARIBAR PUDDING, RefChem:6388, barium(2+) ion sulfate, E-Z-CAT DRY, VARIBAR THIN HONEY, VARIBAR THIN LIQUID, ENTERO VU 24%, A 15 (inorganic compound), Readi-Cat 2 Berry Smoothie, Readi-Cat 2 Banana Smoothie, READI-CAT 2 SMOOTHIE, Barium Sulfate For Suspension, DTXCID0029474, Readi-Cat 2 Mochaccino Smoothie, Readi-Cat 2 Creamy Vanilla Smoothie, 643-039-4, Solbar, Barite, Barite (Ba(SO4)), Barytes, 13462-86-7, barium(2+);sulfate, BaSO4, barite,artificial;baritogendeluxe;baritop;baritop100;baritopgpowder;baritopp;barium100;bariumandreu
Barium sulfate occurs naturally as mineral barite, barytes.
Barium sulfate has wide use as inert filler and pigment extender in paints, primers, inks, plastics, floor tiles, paper coatings, polymer fibres, and rubber.
Barium Sulfate is used as the semi-transparent base (lake) for organic pigments and as a thixotropic weighting mud in oil well drilling.
Barium sulphate is a contrast agent that is used to help x-ray diagnosis of problems in areas of the upper GI tract, like the oesophagus, the stomach, and/ or the small intestine.
The raw barium sulphate has wide applications such as in the manufacture of lithopone, a white pigment in the manufacture of photographic paper, wallpaper and glassmaking, in battery plate expanders, and in heavy concrete for radiation shield.
Barium sulfate can be used in analysis reagents, electronics, instrumentation, metallurgy and other industries.
Barium sulfate can also be used as a white pigment and an administrated agent upon stomach X-ray angiography; it can also used as copper flux, drilling mud weight enlarging agent and the filling agent of rubber, paper, and plastic.
It is produced from the reaction between sulfuric acid and barium chloride.
Barium sulfate is the inorganic compound with the chemical formula BaSO4.
Barium sulfate is a white crystalline solid that is odorless and insoluble in water.
Barium Sulfate occurs in nature as the mineral barite, which is the main commercial source of barium and materials prepared from it.
Its opaque white appearance and its high density are exploited in its main applications.
Barium sulfate is an inorganic compound composed of barium and sulfate ions, widely used in medical, industrial, and chemical applications.
Barium sulfates chemical formula is BaSO₄.
It is known for its high density and chemical inertness.
Barium Sulfate consists of Ba²⁺ cations and sulfate (SO₄²⁻) anions.
The strong ionic bonding results in very low solubility in water.
This makes it chemically stable and non-reactive under most conditions.
Physically, barium sulfate appears as a white, crystalline powder.
Barium sulfate is odorless and insoluble in water and most solvents.
Barium Sulfate has a high density compared to many other inorganic compounds.
Barium sulfate exhibits extremely low solubility, which distinguishes it from other barium salts.
This property reduces the release of toxic barium ions.
Barium sulfate contributes to its safe use in certain applications.
The compound is chemically inert and stable under normal conditions.
Barium sulfate does not easily react with acids or bases.
This makes it suitable for use as a filler and pigment.
Barium sulfate has a high refractive index and brightness.
Barium sulfate is used as a white pigment and extender.
This improves opacity and appearance in coatings.
In medical applications, barium sulfate is used as a contrast agent for X-ray imaging.
Barium sulfate enhances visibility of the gastrointestinal tract.
Its low solubility makes it safe for this use.
Barium sulfate is best described as a dense, inert, and insoluble inorganic compound used as a pigment, filler, and medical contrast agent, valued for its stability and low reactivity.
Barium sulfate has its chemical formula BaSO4.
Barium sulfate is colorless or white orthorhombic crystals with relative molecular mass of 233.4, the relative density of 4.5 (15 ℃), the melting point of 1580 ℃, and the Refractive index of 1.637.
Upon being heated to 1149 ℃, it will become monoclinic crystalline when the refractive index is 1.649.
Barium sulfate has a strong ability for absorbing X-rays with X-ray being impermeable to it.
Therefore, it is medically used as the agent (barium meal) for X-rays on the gut and stomach.
Barium sulfate is the only non-toxic barium salts.
Barium sulfate is almost insoluble in water with the solubility being 0.00022 at 18 ℃ and 0.0041 at 100 ℃.
Barium sulfate is slightly soluble in concentrated sulfuric acid and soluble in carbonate alkali metal solution in which it is converted to barium carbonate; it is insoluble in other kinds of acid or base.
Barium sulfate is existed in the barite mineral form, upon co-heating with carbon (pulverized coal) to 800 ℃, it is reduced to soluble barium sulfide and carbon monoxide.
Melting point: 1580 °C
Boiling point: Decomposes at 1580 °C
Density: 4.5 g/cm³
Bulk density: 500 kg/m³
Storage temperature: No special restriction
Solubility: Insoluble in water
Water solubility: 0.0022 g/L at 50 °C
Form: Powder
Color: White to yellow
Specific gravity: 4.5
Odor: Odorless
Taste: Tasteless
pH range: 7
pH: 3.5–10.0 (100 g/L suspension in water at 20 °C)
Crystal structure: Barite
Crystal system: Orthorhombic
Space group: Pnma
Lattice constants: a = 0.8909 nm, b = 0.5467 nm, c = 0.7188 nm, α = 90°, β = 90°, γ = 90°
Dielectric constant: 11.4 at 16.0 °C
Solubility product constant: pKsp = 9.97
Stability: Stable
Cosmetic ingredient functions: Colorant, opacifying agent
Cosmetic Ingredient Review (CIR): Barium sulfate (7727-43-7)
InChI: 1S/Ba.H2O4S/c;1-5(2,3)4/h;(H2,1,2,3,4)/q+2;/p-2
InChIKey: TZCXTZWJZNENPQ-UHFFFAOYSA-L
SMILES: [Ba++].[O-]S([O-])(=O)=O
LogP: -1.031 (estimated)
Barium sulfate is also used in various manufacturing applications and mixed into heavy concrete to serve as a radiation shield 3.
This drug is used as a contrast agent in diagnostic x-ray procedures.
Therapeutic advantages of barium sulfate in diagnostic procedures include both its low water solubility and high level of clearance from the body Label.
Barium sulfate has a crystalline orthorhombic structure, which contributes to its high density and stability.
The strong ionic lattice makes it resistant to dissolution.
Barium Sulfate structure is responsible for its inert behavior.
The compound exhibits very low solubility (Ksp ≈ 10⁻¹⁰) in water.
This limits the release of Ba²⁺ ions into solution.
As a result, it is significantly less toxic than soluble barium salts.
Barium sulfate has a high specific gravity (~4.5 g/cm³).
This makes it one of the heavier commonly used mineral fillers.
Barium sulfate is useful in applications requiring weight or density.
The material shows excellent chemical resistance.
Barium sulfate is stable against acids, bases, and many chemicals under normal conditions.
This makes it suitable for harsh environments.
Barium sulfate is widely used as a filler and extender pigment.
It improves opacity, brightness, and durability in coatings.
Barium sulfate also enhances mechanical properties in polymers.
The compound has low oil absorption, which helps maintain good flow and processing characteristics in formulations.
Barium sulfate allows higher filler loading without excessive viscosity increase.
This is beneficial in coatings and plastics.
Because of its inertness, barium sulfate is often used in high-purity and specialty applications, including electronics and advanced materials.
Barium sulfate does not interfere with chemical reactions.
This ensures consistent performance.
The compound is also used in radiation shielding applications due to its high density.
Barium sulfate can absorb X-rays and gamma radiation.
This property is important in medical and industrial shielding.
Barium sulfate is a dense, chemically inert, and low-solubility material with excellent stability and optical properties, widely used in pigments, fillers, medical imaging, and shielding applications.
Barium sulfate patients of acute gastrointestinal perforation, gastrointestinal bleeding, colon infarction, acute gastroenteritis, and corrosive esophagitis should be disabled.
Patients of congenital diseases such as tracheal fistula and esophageal atresia are not allowed for using this agent for examination.
Instead, the patient can apply iodized oil or water-soluble contrast agent.
Barium sulfate with mirabilite which has calcium, magnesium being removed and carry out the reaction at 90 °C to generate the barium sulfate precipitate.
The precipitate further undergoes filtration, washing with water and acid and adjusted with sulfuric acid to pH 5-6; again go through filtration, drying and pulverization to obtain the precipitated barium sulfate products.
After addition of surface treatment agent or dispersant during the production process of precipitated barium sulfate, we can obtain modified superfine precipitated barium sulfate; the reaction is as below: BaSO4 + 4C → BaS + 4CO ↑ BaS + Na2SO4 → BaSO4 ↓ + Na2S
Bittern utilization method applies yellow barium halide for reaction with mirabilite; then it further goes through acid cooking, washing with water, separation, dehydration drying to obtain the finished product of barium sulfate. The reaction is as below: BaCl2 + Na2SO4 → BaSO4 ↓ + 2NaCl
Barium sulfate is an inorganic compound with the chemical formula BaSO4 3.
Barium sulfate occurs in nature as the mineral barite.
Uses Of Barium sulfate:
Barium sulfate is applied in paper manufacturing as a coating pigment.
Barium sulfate improves smoothness and print quality.
In adhesives and sealants, it acts as a filler to improve consistency and performance.
Barium sulfate contributes to mechanical strength.
This supports formulation stability.
Barium sulfate is used in ceramics and glass production.
Barium sulfate helps modify material properties and appearance.
This supports manufacturing processes.
In radiation shielding materials, it is used due to its high density.
It helps absorb X-rays and gamma radiation.
This is important in medical and industrial safety.
Barium sulfate is applied in cosmetics, such as powders and creams, as a pigment and texture modifier.
It improves product feel and opacity.
This enhances cosmetic performance.
Barium sulfate is used wherever high density, chemical inertness, opacity, and stability are required across medical, industrial, and consumer applications.
Barium sulfate is used in high-density concrete and construction materials to provide radiation shielding and added weight.
It improves protection against radiation in medical and industrial facilities.
This is important for safety-critical structures.
In automotive and sound-damping materials, barium sulfate is used to increase mass and reduce vibration.
Barium sulfate helps improve acoustic insulation.
This enhances comfort and performance.
Barium sulfate is applied in printing inks as a pigment extender.
It improves color consistency and opacity.
This supports high-quality printing.
In cosmetic products such as foundations and sunscreens, it acts as a pigment and filler.
Barium sulfate improves texture, coverage, and brightness.
This enhances product appearance.
It is used in battery and electronic materials as a filler to improve stability and density.
Barium sulfate helps maintain consistent performance.
This supports advanced material applications.
Barium sulfate is applied in laboratory standards and calibration materials.
Its stable and inert nature makes it suitable for reference purposes.
This ensures accurate measurements.
In powder coatings, it is used to improve flow properties and surface finish.
Barium sulfate helps achieve smooth, uniform coatings.
This enhances coating quality.
Barium sulfate is used in marine and protective coatings due to its chemical resistance.
It helps protect surfaces from harsh environments.
This improves durability.
Barium sulfate is also applied in decorative and specialty papers to enhance brightness and printability.
It improves visual quality.
Barium sulfate is used wherever density, stability, opacity, radiation shielding, and improved material performance are required across construction, automotive, electronics, and consumer industries.
Barium Sulfate, as mentioned, is used in medicine as an opaque liquid medium to block X-rays when ingested, thus providing an image of ulcers and intestinal problems.
It is also used in the manufacture of paints, rubber, and plastics.
Barium sulfate is an emulsion stabilizer for sunscreen formulations. outside of sunscreen preparations, this inorganic salt is most commonly used in non-cosmetic soaps.
Barium sulfate has many commercial applications.
Barium sulfate is used either as natural barite, or precipitated BaSO4.
The precipitated salt in combination with equimolar amount of co-precipitated zinc sulfide formerly was used as a white protective coating pigment, known as “lithopone”.
Similarly, in combination with sodium sulfide, it is used to produce fine pigment particles of uniform size, known as “blanc fixe”. Natural barite, however, has greater commercial application than the precipitated salt.
Barium sulfate is used as an additive in drilling mud in crude oil, well drilled to lubricate and cool the drilling bit, and to plaster the walls of the drill hole to prevent caving.
Barium sulfate is used as a filler in automotive paints, plastics and rubber products.
Barium sulfate also is used as a filler in polyurethane foam floor mats, white sidewall rubber tires and as a flux and additive to glass to increase the refractive index.
Barium sulfate is widely used as a radiographic contrast agent in medical imaging.
It is administered orally or rectally to visualize the gastrointestinal tract in X-ray and CT scans.
Barium sulfates high density enhances image contrast.
In paints, coatings, and pigments, barium sulfate is used as a filler and extender.
It improves brightness, opacity, and durability.
This enhances coating performance and appearance.
Barium sulfate is used in plastics and rubber as a filler.
It increases density and improves mechanical properties.
This supports material strength and stability.
In drilling fluids (oil and gas industry), it is used as a weighting agent.
Barium Sulfate helps control pressure in drilling operations.
This improves safety and efficiency.
Safety Profile Of Barium sulfate:
Barium sulfate is generally considered to have low hazard potential due to its extremely low solubility, which limits the release of toxic barium ions.
It is much safer than soluble barium compounds.
However, exposure to dust should still be controlled.
Skin contact is typically low risk, but prolonged exposure to fine powder may cause mild dryness or irritation.
No significant absorption occurs through intact skin.
Basic protective gloves are recommended in industrial settings.
Eye contact with dust may cause mechanical irritation.
Symptoms can include redness, discomfort, and tearing.
Eyes should be rinsed with water if exposure occurs.
Barium sulfate inhalation of dust may cause respiratory irritation.
Fine particles can irritate the nose, throat, and lungs.
Adequate ventilation and dust control are recommended.
Chronic inhalation of high dust concentrations may lead to lung effects (baritosis), a benign form of pneumoconiosis.
This condition is generally non-fibrotic but indicates dust accumulation.
Exposure limits should be respected.
Ingestion is considered low toxicity because barium sulfate is poorly absorbed in the gastrointestinal tract.
Questionable carcinogen with experimental tumorigenic data.
Mutation data reported, relatively insoluble salt used as an opaque medium in radtography.
Soluble impurities can lead to toxic reactions, heating with aluminum can produce an explosion.
Incompatible with aluminum and potassium when heated to decomposition it emits toxic fumes of SOx.
