Tungsten
Tungsten, or wolfram, is a transition metal and has the highest melting point of all the elements discovered. Tungsten is rarely found on Earth and its color varies from white to grey. Its hardness and density makes it resistant to attacks by oxygen, acids and alkalis. Tungsten is mainly used in the production of hard materials based on tungsten carbide. Tungsten alloys have numerous applications, including incandescent light bulb filaments, electrodes in TIG welding, superalloys and radiation shielding. Tungsten compounds are also used as precursor in the production of catalysts.
Tungsten Carbides
W
- Family W (Tungsten)
- CAS registry number 12070-12-1
- Formula WC, W2C
Sodium Tungstate
W
- Family W (Tungsten)
- CAS registry number 10213-10-2
- Formula Na2WO4.2H2O
Ammonium Metatungstate
W
- Family W (Tungsten)
- CAS registry number 12028-48-7
- Formula H4N.1/6H2O40W12
Silicotungstic Acid
W
- Family W (Tungsten)
- CAS registry number 12027-43-9
- Formula H4(W12SiO40) xH2O
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Phosphotungstic Acid
W
- Family W (Tungsten)
- CAS registry number 12501-23-4
- Formula H3PW12O40 xH2O