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Sigma-Aldrich

Calcium tungstate

powder

Synonym(s):

Calcium tungsten tetraoxide

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About This Item

Linear Formula:
CaWO4
CAS Number:
Molecular Weight:
287.92
EC Number:
MDL number:
UNSPSC Code:
12352300
PubChem Substance ID:
NACRES:
NA.23

form

powder

density

6.06 g/mL at 25 °C (lit.)

SMILES string

[Ca++].[O-][W]([O-])(=O)=O

InChI

1S/Ca.4O.W/q+2;;;2*-1;

InChI key

FDMFQOCGNBYKPY-UHFFFAOYSA-N

General description

Calcium tungstate (CaWO4) is an optical material, which can be used as a laser host material for a variety of electronic applications. It has a scheelite structure with luminescence, and thermo-luminescence properties.

application

CaWO4 can be used in the fabrication of a radio-sensitizer for cancer radiotherapy applications. It can also be used as a catalyst for the oxidation of organic substrates with hydrogen peroxide.

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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L J Skoczylas et al.
Oral surgery, oral medicine, and oral pathology, 68(6), 776-781 (1989-12-01)
The radiation dose to radiobiologically critical organs at various anatomic sites in a phantom was compared with the use of rare earth screen/film combinations and calcium tungstate screen/film combinations. Rare earth screens and films produced a reduction in dose up
Controlled synthesis of calcium tungstate hollow microspheres via ostwald ripening and their photoluminescence property
Wang W, et al.
The Journal of Physical Chemistry C, 112(49), 19390-19398 (2008)
A P Aguas et al.
The American journal of anatomy, 190(1), 89-96 (1991-01-01)
We have studied the subcellular distribution of ferritin in inflammatory macrophages present in regional lymph nodes from dogs subjected to a pulmonary inflammatory reaction. The inflammatory reaction was induced by intrabronchial instillation of calcium tungstate (CaWO4), a water-insoluble powder. Ferritin
Jaume Escoda-Francoli et al.
Journal of endodontics, 33(12), 1484-1489 (2007-11-27)
Damage to the inferior alveolar nerve is a relatively infrequent complication in dental practice. When root canal treatment of a lower molar or premolar surpasses and/or overextends beyond the apical foramen and invades the periapical zone, the foreign material introduced
Zhenling Wang et al.
Journal of nanoscience and nanotechnology, 7(2), 602-609 (2007-04-25)
Nano-submicrostructured CaWO4, CaWO4 : Pb2+ and CaWO4 : Tb3+ particles were prepared by polyol method and characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), Fourier transform infrared spectra (FT-IR), thermogravimetry-differential thermal analysis (TG-DTA)

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