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

A11768 Barium sulfate, precipitated, 99%

CAS Number
7727-43-7
Synonyms

Size Price ($) Quantity Availability
500g 37.17
2500g 75.33
10000g 233.10
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Barium sulfate, precipitated, 99%

MDL
MFCD00003455
EINECS
231-784-4

Chemical Properties

Formula
BaSO4
Formula Weight
233.40
Melting point
1580° dec.
Density
4.5
Solubility
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.

Literature References

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.

Other References

Merck
14,994
Harmonized Tariff Code
2833.27
TSCA
Yes

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