Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references
Chemical compound
Polonium trioxide (also known as polonium(VI) oxide) is a chemical compound with the formula PoO3. It is one of three oxides of polonium, the other two being polonium monoxide (PoO) and polonium dioxide (PoO2). It is an interchalcogen that has so far only been detected in trace amounts.[1][2]
^Holleman, Arnold Frederik; Wiberg, Egon (2001), Wiberg, Nils (ed.), Inorganic Chemistry, translated by Eagleson, Mary; Brewer, William, San Diego/Berlin: Academic Press/De Gruyter, p. 594, ISBN 0-12-352651-5
^Bagnall, K. W. (1962). "The Chemistry of Polonium". Advances in Inorganic Chemistry and Radiochemistry. New York: Academic Press. pp. 197–230. ISBN 9780120236046. Retrieved June 14, 2012.
Poloniumtrioxide (also known as polonium(VI) oxide) is a chemical compound with the formula PoO3. It is one of three oxides of polonium, the other two...
Sulfur trioxide (alternative spelling sulphur trioxide, also known as nisso sulfan) is the chemical compound with the formula SO3. It has been described...
one of three oxides of polonium, the other two being polonium monoxide (PoO) and poloniumtrioxide (PoO3). It is a pale yellow crystalline solid at room...
polonium, the other two being polonium dioxide (PoO2) and poloniumtrioxide (PoO3). It is an interchalcogen. Polonium monoxide is a black solid. It is...
elements are less frequently so classified: carbon, aluminium, selenium, polonium and astatine. On a standard periodic table, all eleven elements are in...
the oxides tellurium monoxide, tellurium dioxide, and tellurium trioxide. Polonium's oxidation states are +2 and +4. There are many acids containing chalcogens...
chalcogen atoms (elements of group 16: oxygen, sulfur, selenium, tellurium, polonium, and livermorium). Water, the first chemical compound in this series, contains...
semiconductor gallium arsenide. Arsenic and its compounds, especially the trioxide, are used in the production of pesticides, treated wood products, herbicides...
or by chemical processes such as spontaneous decomposition of hydrogen trioxide in water or the reaction of hydrogen peroxide with hypochlorite. Triatomic...
improves the rigidity of lead-alloy plates in lead–acid batteries. Antimony trioxide is a prominent additive for halogen-containing flame retardants. Antimony...
of 8.1 hours or less, decaying into other astatine isotopes, bismuth, polonium, or radon. Most of its isotopes are very unstable, with half-lives of seconds...
radioactive element to be discovered, after uranium, thorium, radium, and polonium. In 1899, Pierre and Marie Curie observed that the gas emitted by radium...
trioxide (MoO 3). The black disulfide is the main mineral. It is roasted in air to give the trioxide: 2 MoS 2 + 7 O 2 → 2 MoO 3 + 4 SO 2 The trioxide...
shorter than the other four), but this has not been verified experimentally. Polonium hexafluoride is known, but not well-studied. It could not be made from...
+ H2O → 3 H2SeO3 + 4 NO Unlike sulfur, which forms a stable trioxide, selenium trioxide is thermodynamically unstable and decomposes to the dioxide above...
corresponding compounds of the [typical] nonmetals." Arsenic trioxide reacts with sulfur trioxide, forming arsenic "sulfate" As2(SO4)3. This substance is covalent...
elevated temperatures (i.e., when red-hot) it reacts with oxygen to form the trioxide compound tungsten(VI), WO3. It will, however, react directly with fluorine...
monoxide" (really a mixture of Te and TeO2). Tellurium dioxide Tellurium trioxide Lead carbide – originally thought to be a pure compound, but now considered...
above −40 °C, violently decomposing to its elements at 0 °C. Dibromine trioxide, syn-BrOBrO2, is also known; it is the anhydride of hypobromous acid and...
carcinogenic. According to the European Chemicals Agency (ECHA), chromium trioxide that is used in industrial electroplating processes is a "substance of...
conditions gives sulfur dioxide (oxidation state +4), formation of sulfur trioxide (oxidation state +6) requires temperature 400–600 °C (750–1,100 °F) and...
resulting mixture is then dried and washed resulting in uranium trioxide. The uranium trioxide is then mixed with pure hydrogen resulting in uranium dioxide...
was that of Russian dissident Alexander Litvinenko in 2006 from lethal polonium-210 radiation poisoning. Today, poison is used for a wider variety of purposes...
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