Ammonium Metatungstate

Ammonium Metatungstate is used in the manufacture of tungsten metal, alloy steel, fire retardant fabric and so on. It’s also used in Petrochemical Industry for Desulphurization.

  1. Chemical Formula:(NH4)6H2W12O40·4H2O
  2. Shape and properties: White and Faint Yellow Crystal Powder
  3. Physical properties: Products passing 60 mesh screen
  4. 25℃ Water Solution’s PH: 2~4
  5. Packing: In iron drum lined with plastic bags or cloth bags of 100 or 200kgs net each

Note: Other requirements shall be discussed in details

Ammonium Metatungstate
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Grade properties

 Grade  AMT-90  AMT-91
 WO3(%min)  90  91
 Impurities
(%max)
 Al  As  Bi  Ca  Co  Cr  Cu  Fe  K  Mn  Mg
 0.0010  0.0010  0.0001  0.0015  0.0010  0.0010  0.005  0.002  0.001  0.0010  0.0005
 Mo  Na  Ni  P  Pb  S  Sb  Si  Sn  Ti  V
 0.0030  0.0015  0.0005  0.0008  0.0001  0.0015  0.0008  0.0015  0.0005  0.0010  0.0010