thorium dioxide

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Related to Thorium oxide: Uranium oxide

thorium dioxide

n.
A heavy white powder, ThO2, obtained from monazite and used mainly in ceramics, glass, and gas mantles, as a catalyst, and as a radiopaque diagnostic aid. Also called thoria, thorium oxide.

thorium dioxide

n
(Elements & Compounds) a heavy insoluble white powder used in incandescent mantles. Formula: ThO2. Also called: thoria
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75 per cent of enriched uranium and the balance thorium oxide.
Also found in the samples was phosphate resulting from the oxidation of white phosphorus and tungsten material carcinogens, in addition to copper and aluminum oxide, a carcinogenic and radioactive thorium oxide material.
6,7,9) Risk factors for developing angiosarcoma in other anatomic subsites--such as exposure to vinyl chloride, pyothorax, and thorium oxide and the presence of lymphedema--have not been clearly implicated in head and neck lesions.