Tungstate

In chemistry a tungstate is a compound that contains an oxoanion of tungsten or is a mixed oxide containing tungsten. The simplest tungstate ion is WO42−, "orthotungstate". Many other tungstates belong to a large group of polyatomic ions that are termed polyoxometalates, ("POMs"), and specifically termed isopolyoxometalates as they contain, along with oxygen and maybe hydrogen, only one other element. Almost all useful tungsten ores are tungstates.

Read more about TungstateStructures, Occurrence, Reactions

Other articles related to "tungstate, tungstates":

A Large Ion Collider Experiment - Photon Spectrometer
... It will be made of lead tungstate crystals ... When high energy photons strike lead tungstate, they make it glow, or scintillate, and this glow can be measured ... Lead tungstate is extremely dense (denser than iron), stopping most photons that reach it ...
Tungstate - Reactions
... Solutions of tungstates, like those of molybdates, give intensely blue solutions of complex tungstate(V,VI) analoguous to the molybdenum blues when reduced by most organic materials ... Unlike chromate, tungstate is not a good oxidizer, but like chromate, solutions of tungstate condense to give the isopolytungstates upon acidification ...
Sodium Tungstate - Preparation and Structure
... of tungsten ores, almost all of which are tungstates ... are treated with base to give sodium tungstate, as illustrated in the case of wolframite Fe/MnWO4 + 2 NaOH + 2 H2O → Na2WO4•2H2O + Fe/Mn(OH)2 Scheelite ... Sodium tungstate can also be produced by treating tungsten carbide with a mixture of sodium nitrate and sodium hydroxide in a fusion process which overcomes the high exothermicity ...
Tungsten - Characteristics - Chemical Properties
... the yellow tungstic oxide, WO3, which dissolves in aqueous alkaline solutions to form tungstate ions, WO2− 4 ... In aqueous solution, tungstate gives the heteropoly acids and polyoxometalate anions under neutral and acidic conditions ... As tungstate is progressively treated with acid, it first yields the soluble, metastable "paratungstate A" anion, W 7O6– 24, which over time converts to ...
Cadmium Tungstate
... Cadmium tungstate (CdWO4 or CWO), the cadmium salt of tungstic acid, is a dense, chemically inert solid which is used as a scintillation crystal to detect gamma rays ... Cadmium tungstate was used as a replacement of calcium tungstate in some fluoroscopes since 1940's ... Cadmium tungstate films can be deposited by sol-gel technology ...