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Products > Vacuum Evaporation Material > > Ammonium Paratungstate
Product name : Ammonium Paratungstate
Product No. : 2014722113946
Purity : 
Size : 
Surface : 
Status : 
Packing : 
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  Details:
 

Ammonium Paratungstate:

Grade

APT-0

APT-1

WO3(%min)

88.5

88.5

Impurities

(%max)

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
3)Any special requirement to the products can be discussed.

 

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