Ammonium Metatungstate(AMT)
Tungsten Trioxide(YTO)
Blue Tungsten Oxide(BTO)
Tungsten Metal Powder
Tungsten Carbide Powder 1
Tungsten Carbide Powder 2
Tungsten Rod
Tungsten Wire
Ammonium Paratungstate(APT)
W-base High Density Alloy
 
Ammonium Metatungstate
Appearance: white crystallized powder.
Grade and chemical composition

Grade

AMT1

AMT2

WO3 Content (%min)

90.0

85.0

Impurities

(% max)

 As 0.001 0.001
A1 0.0020 0.0001
Ca 0.001 0.003
Cu 0.0030 0.0005
Zn 0.001 0.001
P 0.001 0.001
Fe 0.003 0.005
K 0.003 0.003
Mg 0.0010 0.0010
Mo 0.0020 0.005
Ni 0.0005 0.0005
Na 0.003 0.003
Pb 0.0010 0.0001
S 0.003 0.005
Sn 0.001 0.002
Si 0.0040 0.0060
Insolubles,hot water(max):0.03%
25°C water solution's pH:2.0-4.0

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