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248665

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

Quality Level

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 Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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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)
L J Wesselius et al.
The Journal of laboratory and clinical medicine, 127(4), 401-409 (1996-04-01)
Extracellular iron present in alveolar structures may contribute to oxidative lung injury induced by toxic mineral dusts by enhancing dust-induced generation of hydroxyl radicals. Alveolar macrophages (AMs) can sequester iron within ferritin and limit generation of hydroxyl radicals. In the
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
Michele Di Foggia et al.
Journal of inorganic biochemistry, 193, 84-93 (2019-01-28)
Dentin remineralization is of clinical relevance in the therapy of caries and dentin hypersensitivity. This study is aimed at gaining more insights on a molecular scale, through IR spectroscopy, into dentin demineralization and remineralization. The dentin demineralization by ethylenediaminetetraacetic acid
Transfer copings made from acrylic resin with an opaquing agent.
I Lewinstein et al.
The Journal of prosthetic dentistry, 60(5), 548-549 (1988-11-01)

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