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7727-43-7 - Barium sulfate, precipitated, 99% - A11768 - Alfa Aesar

A11768 Barium sulfate, precipitated, 99%

Numéro de CAS
7727-43-7
Synonymes

Conditionnement Prix ($) Quantité Disponibilité
500g 43,00
2500g 87,00
10000g 269,00
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Barium sulfate, precipitated, 99%

MDL
MFCD00003455
EINECS
231-784-4

Propriétés chimiques

Formule
BaSO4
Poids moleculaire
233.40
Point de fusion
1580° dec.
Densité
4.5
Solubilité
Soluble in hot concentrated sulphuric acid. Insoluble in water.

Applications

Barium sulfate has wide range of applications. It is primarily used in oil well drilling fluid, and as filler in the paint and varnish industry. It is one of the major constituents of the pigment Lithiopone and the white pigment for paints. It improves the resistance against acid and acidity for plastics when employed as filler. Further it is employed as a component in strobe pyrotechnic compositions, and as a coating for photographic papers to improve the effectiveness of the image. Baryta, a thin layer of barium sulfate, is used to make the papers bright for ink-jet printing. In the chemical and pharmaceutical industry, it is used as a catalyst support when selective hydrogenations are required, for e.g. in Rosenmund reduction (Pd on barium sulfate). In colorimetry, barium sulfate is used as a diffuser to measure light sources. In the medical field, barium sulfate suspension is used clinically as a radiocontrast agent for X-ray imaging and other diagnostic procedures. In biomaterials research, it is one of the components utilized in the preparation of acrylic bone cements.

Notes

Incompatible with oxidizing agents, aluminum and phosphorus.

Références bibliographiques

Gillani, R.; Ercan, B.; Qiao, A.; Webster, T. J. Nanofunctionalized Zirconia and Barium Sulfate Particles as Bone Cement Additives. Int. J. Nanomedicine 2010, 5, 1-11.

Hennessy, A. J. B.; Graham, G. M. The Effect of Additives on the Co-crystallization of Calcium with Barium Sulphate. J. Cryst. Growth 2002, 237-239, 2153-2159.

Jones, F.; Jones, P.; Ogdena, M. I.; Richmond, W. R.; Rohl, A. L.; Saunders, M. The Interaction of EDTA with Barium Sulfate. J. Colloid. Interf. Sci. 2007, 316, 553-561.

Autres références

Merck
14,994
Code tarifaire harmonisé
2833.27
TSCA
Yes

Recommandé

  • A11766

    Allyl bromide, 99%, stab. with 300-1000ppm Propylene oxide
  • A17814

    2-Amino-2-methyl-1-propanol, 95%, may cont. ca 5% water
  • L13251

    Fluorescein, 90+%
  • 10515

    Lithium chloride, anhydrous, 99%
  • 14707

    Sodium hydrogen carbonate, ACS, 99.7-100.3%

Consulté récemment

Produits chimiques

Sciences de la vie

Métaux et matériaux

Catalyseurs

Analytique et matériel de laboratoire