1. Tungsten trading forms
The various commercial forms of tungsten are :
ores and concentrates (scheelite, wolframite) ;
tungstates: sodium tungstate, ammonium metatungstate (AMT) and especially ammonium paratungstate (APT);
oxides: trioxide WO3, blue oxide (TBO) and tungstic acid H2WO3 ;
tungsten metal powders ;
WC tungsten carbide powders ;
fused carbide powders (eutectic WC-W2C) ;
ferrotungsten ;
tungstic waste ;
some minor compounds: tungsten bronzes (Nax WO3 in particular), CaWO4, MgWO4, WS2, WSe2, WCl6.
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Tungsten trading forms
Tungsten applications
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