Ammonium Metatungstate

Property：Ammonium Metatungstate[(NH4)6H2W12O40·XH20];Water-soluble，300g/100ml. Insoluble in water，This is a clear distinction between and ammonium paratungstate.

Implementation of Standards:Q/320583W&M108－2004

Quality Standards:Tungstate［(NH4)6H2W12O40·XH20］≥98%

Application:Used for the metal tungsten, alloy steel, fireproof fabric, etc., and for the ceramic industry

Packing:The product packaging used steel barrel,polyethylene-lined plastic bags and they should be tightly enclosed separately. The net weight for each is 25kg or 50kg.

Grade		AMT-1A	AMT-2A
		AMT-1B	AMT-2B
		AMT-1C	AMT-2C
Purity Min.(%)		99.95	99.9
Main Comp WO3 MIN.(%)		83	83
Content of Other Chemical Element Max.(%)	Al	0.001	0.001
	As	0.001	0.001
	Bi	0.0001	0.0001
	Ca	0.001	0.003
	Cr	0.001	0.001
	Cu	0.001	0.003
	Fe	0.002	0.003
	K	0.0015	0.002
	Mg	0.001	0.002
	Mn	0.001	0.001
	Mo	0.005	0.01
	Na	0.0015	0.002
	Ni	0.001	0.001
	P	0.001	0.003
	Pb	0.0001	0.0001
	S	0.0005	0.001
	Sb	0.001	0.002
	Si	0.001	0.002
	Sn	0.0001	0.0003
	Ti	0.001	0.002
	V	0.001	0.002
Matter Undissolved in Water Max		0.5	0.5
PH Value		3.0-4.5	3.0-4.5