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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.