Ammonium Paratungstate APT
Appearance:white crystalline powder
Purity:wo3 88.5%min
Fsss:35-46um
Scott Density: 1.8-2.6 g/cm3
Ammonium Paratungstate APT
Grade | APT-0 | APT-1 | |
WO3(%min) | 88.5 | 88.5 | |
Impurities | Al | 0.0005 | 0.0010 |
Fe | 0.0010 | 0.0010 | |
S | 0.0007 | 0.0010 | |
As | 0.0010 | 0.0010 | |
P | 0.0007 | 0.0010 | |
Mo | 0.0020 | 0.0050 | |
Ca | 0.0010 | 0.0010 | |
Mg | 0.0007 | 0.0010 | |
K | 0.0010 | 0.0015 | |
Na | 0.0010 | 0.0015 | |
Si | 0.0010 | 0.0010 | |
Cu | 0.0003 | 0.0005 | |
Mn | 0.0010 | 0.0010 | |
Ni | 0.0007 | 0.0010 | |
Pb | 0.0001 | 0.0001 | |
Bi | 0.0001 | 0.0001 | |
Sn | 0.0001 | 0.0003 | |
Sb | 0.0008 | 0.0010 | |
V | 0.0010 | 0.0010 | |
Ti | 0.0010 | 0.0010 | |
Cr | 0.0010 | 0.0010 | |
Co | 0.0010 | 0.0010 | |
Formula: 5(NH4)2O.12WO3.5H2O.
Appearance:Free flowing white crystalline powder with no any other cast or foreign matter.
Ignition Loss: 11.5%max
Fsss: 35-46 micron.
Scott Density: 1.8-2.6 G/CM3.
Packing:In iron drums with inside plastic bags of 100kg or 200kg net each.
Remarks:
1)APT-0 is high purity matetial for special uses.
2)Material of 40-46micron is mainly used for producing tungsten bar for drawing wire
