Barium Sulfate Properties, Molecular Formula, Applications - WorldOfChemicals

Barium Sulfate Properties

Barium Sulfate

Barium Sulfate Structure-Molecule Struture
Molecule Structure Image



Barium sulfate is an inorganic compound. It occurs as the mineral barite, which is the main commercial source of barium and materials prepared from it. The white opaque appearance and its high density are exploited in its main applications. About 80% of the world's barium sulfate production, mostly purified mineral, is consumed as a component of oil well drilling fluid. It increases the density of the fluid. The majority of synthetic barium sulfate is used as a component of white pigment for paints. In oil paint, barium sulfate is almost transparent, and is used as a filler or to modify consistency. It is frequently used clinically as a radiocontrast agent for X-ray imaging and other diagnostic procedures. It is most often used in imaging of the GI tract during what is colloquially known as a 'barium meal'. It is administered, orally or by enema, as a suspension of fine particles in an aqueous solution. Although barium is a heavy metal, and its water-soluble compounds are often highly toxic, the low solubility of barium sulfate protects the patient from absorbing harmful amounts of the metal. It is also used during the procedure of the soil pH test. It is a low surface area material used as a support for selectively hydrogenating functional groups sensitive to overreduction. It is commonly used as a component of strobe pyrotechnic compositions.

Chemical Properties

Appearance White Crystalline Powder
Boiling Point 1600 °C
Brand Name Bar-Test;E-Z-Disk;Readi-Cat;Volumen;Acb;Baro-Cat;Barosperse Enema;Colobar-100;Epi-C;Epi-Stat;Esobar;Esopho-Cat Esophageal Cream;E-Z-Cat;E-Z-Hd;E-Z-Jug;E-Z-Paque
CAS Number 7727-43-7
Class NA
Density 4.50 g/cm3
EINECS Number 231-784-4
HS Code 283327000
IUPAC Name Barium(2+) sulfate
InChI 1S/Ba.H2O4S/c;1-5(2,3)4/h;(H2,1,2,3,4)/q+2;/p-2
Melting Point 1580 °C
Molar Mass 233.43 g/mol
Molecular Formula BaSO4
NFPA 704 H-0,F-0,R-0,C-NA
RTECS Number CR0600000
Refractive 1.64
Solubility 0.0002448 g/100 ml
Synonyms Barium Sulfate;Barite BA;Artificial Barite;Artificial Heavy Spar;Travad;Baryta White;Enamel White;Bayrites;Supramike;Oratrast;Precipitated Barium Sulphate;Citobaryum;Colonatrast;Macropaque;Barium Sulphate;White Barium Sulphate Lump;Barium Sulfate Ultrafine;Barosperse;Prontobario;Neobalgin;Mixobar;Sachtoperse HU;B;Micropaque;Superfine Barium Sulfate;Sparmite